Sky Gate, New York

The original One World Trade Center (also known as the North Tower, Tower 1, Building One, or 1 WTC) was one of the Twin Towers of the original World Trade Center complex in New York City. It was completed in 1972, stood at a height of 1,368 feet (417.0 m), and was the tallest building in the world until 1973, when surpassed by the Sears Tower in Chicago. It was distinguishable from its twin, the original 2 World Trade Center, also known as the South Tower, by the 360-foot (110 m) telecommunications antenna on its roof. Including the antenna, the building stood at a total height of 1,728 feet (526.7 m). Other things that made the North Tower distinguishable from its twin was a canopy connected to the North Tower's west facade on street level as well as two pedestrian walkways that extended from the west and south promenades of Three and Six World Trade Center to the North Tower's north and south facades on plaza level, all of which the South Tower lacked. The building's address was 1 World Trade Center, and the WTC complex had its own ZIP code (10048) due to its large size. The original World Trade Center was destroyed in the terrorist attacks of September 11, 2001. Struck by American Airlines Flight 11 at 8:46 a.m., the North Tower was the first of the Twin Towers to be hit by a hijacked aircraft, and the second to collapse, at 10:28 a.m. The North Tower stood for 102 minutes after the aircraft impact. Of the 2,977 victims killed in the attacks, around 1,700 were in the North Tower or on the ground. The North Tower was succeeded by the present-day One World Trade Center tower, which was opened in November 2014 as the lead building of the redeveloped World Trade Center site. At the National September 11 Memorial & Museum, the northern pool marks the spot where the North Tower once stood.

The 1998 Bank of America robbery was a bank robbery of $1.6 million in cash at the Bank of America in 1 World Trade Center, in New York City, on January 14, 1998. The robbery was plotted and executed by an actor and petty criminal with connections to the DeCavalcante crime family named Ralph Guarino. Guarino received some intelligence from a WTC worker named Salvatore Calciano, who told him about the increased security that followed the 1993 World Trade Center bombing and would later give him his employee ID badge from a friend of Calciano. He also told Guarino when a Brink's armored truck would arrive to deliver money via elevator to the 11th floor of the North Tower (Tower One) of the WTC. The two of them planned the robbery and recruited three other criminals to complete the actual robbery: Richie Gillette, 39, from Windsor Terrace, Brooklyn, as well as his friends Melvin Folk, 44, and Mike Reed, 34. On Wednesday, January 14, 1998, a Brink's van pulled up to the World Trade Center at around 8:30 a.m. and began unloading some bags of money. Only Gillette wore a ski mask to make it more difficult for others to identify him. They successfully subdued the WTC employees and guards to steal the bags. They took a total of $1.6 million (worth $2.7 million today). The robbers exited the WTC at 8:45 a.m. In the aftermath of the robbery, Folk and Reed returned to their old neighborhoods and were quickly identified and captured. Gillette was questioned by security after boarding an Amtrak train but was not detained at the time. He was later found and arrested in Albuquerque, New Mexico, two days later, at 8:30 pm. January 16. The FBI did not believe the three had acted alone and began to search for a mastermind. Guarino had various ideas of how to get rid of the money but ultimately was unable to follow through on any plans before FBI agents came to arrest him at his Staten Island home. Following his arrest, Guarino agreed to become an FBI informant on the DeCavalcante mafia family.

The 1975 World Trade Center fire was a case of arson at the 1 World Trade Center in Lower Manhattan, New York occurring on February 12, 1975. The initial fire was started, and spread from the 11th floor from between the 9th and 14th floors, but was quickly extinguished by firefighters. The arsonist was later caught three months later on May 20 and was identified to be Oswald Adorno, a custodian working at the WTC, who's motive was because he was "disgruntled with his employer," said by Fire Commissioner Stephen J. Murphy. There were no direct casualties and only minor injuries were sustained, with a few cases of smoke inhalation; costs in damages were estimated to be $1,000,000. In 1981, a $45 million sprinkler system was approved and began installation into the building as a result of the fire. A few laws in New York regarding fire safety were updated as well.

Windows on the World was a complex of dining, meeting, and entertainment venues on the top floors (106th and 107th) of the North Tower (Building One) of the original World Trade Center complex in Lower Manhattan.It included a restaurant called Windows on the World, a smaller restaurant called Wild Blue (before 1999 was called "Cellar in the Sky"), a bar called The Greatest Bar on Earth (which had previously been the Hors d'Oeuvrerie) as well as a wine school and conference and banquet rooms for private functions located on the 106th floor. Developed by restaurateur Joe Baum and designed initially by Warren Platner, Windows on the World occupied 50,000 square feet (4,600 m2) of space in the North Tower. The Skydive Restaurant, which was a 180 seat cafeteria on the 44th floor of 1 WTC conceived for office workers, was also operated by Windows on the World.The restaurants opened on April 19, 1976, and were destroyed in the September 11 attacks. All of the staff members who were present in the restaurant on the day of the attacks perished; escape was not possible from the 92nd floor up.

American Airlines Flight 11 was a domestic passenger flight that was hijacked by five al-Qaeda terrorists on September 11, 2001, as part of the September 11 attacks. Lead hijacker Mohamed Atta deliberately crashed the plane into the North Tower of the World Trade Center in New York City, killing all 92 people aboard and ensuring the deaths of 1,402 people at and above the aircraft's impact zone. The aircraft involved, a Boeing 767-223ER, registration N334AA, was flying American Airlines' daily scheduled morning transcontinental service from Logan International Airport in Boston to Los Angeles International Airport in Los Angeles. Fifteen minutes into the flight, the hijackers injured at least three people (possibly killing one), forcibly breached the cockpit, and overpowered the captain and first officer. Atta, an al-Qaeda member and licensed commercial pilot, took over the controls. Air traffic controllers suspected that the flight was in distress because the crew was no longer responding. They realized the flight had been hijacked when Mohamed Atta's announcements for passengers were unintentionally transmitted to air traffic control. On board, flight attendants Amy Sweeney and Betty Ong contacted American Airlines, and provided information about the hijackers and injuries to passengers and crew. The aircraft crashed into the North Tower of the World Trade Center at 08:46:40 local time. Countless people in the streets of New York City witnessed the strike, but few video recordings captured the moment. Documentary filmmaker Jules Naudet captured the only known footage of the initial impact from start to finish. Before the hijacking was confirmed, news agencies began to report on the incident and speculated that the crash had been an accident; moments later, United Airlines Flight 175 was flown into the South Tower of the World Trade Center by hijackers. The impact and subsequent fire caused the North Tower to collapse 102 minutes after the crash, resulting in hundreds of additional casualties. During the recovery effort at the World Trade Center site, workers recovered and identified dozens of remains from Flight 11 victims, but many body fragments could not be identified.

The collapse of the World Trade Center occurred during the terrorist attacks of September 11, 2001, after the Twin Towers were struck by two hijacked commercial airliners. One World Trade Center (WTC 1, or the North Tower) was hit at 8:46 a.m. Eastern time and collapsed at 10:28 a.m. Two World Trade Center (WTC 2, or the South Tower) was hit at 9:03 a.m. and collapsed at 9:59 a.m. The resulting debris severely damaged or destroyed more than a dozen other adjacent and nearby structures, ultimately leading to the collapse of 7 World Trade Center at 5:21 p.m. A total of 2,763 people were killed in the crashes, fires, and subsequent collapses, including 2,192 civilians, 343 firefighters, and 71 law enforcement officers as well as all the passengers and crew on the airplanes, which included 147 civilians and the 10 hijackers. In September 2005, the National Institute of Standards and Technology (NIST) published the results of its investigation into the collapse. The investigators did not find anything substandard in the design of the twin towers, noting that the severity of the attacks was beyond anything experienced in buildings in the past. They determined the fires to be the main cause of the collapses, finding that sagging floors pulled inward on the perimeter columns, causing them to bow and then to buckle. Once the upper section of the building began to move downwards, a total progressive collapse was unavoidable. The cleanup of the World Trade Center site involved round-the-clock operations and cost hundreds of millions of dollars. Some surrounding structures that were not hit by the airplanes still sustained significant damage, requiring them to be torn down. Demolition of the surrounding damaged buildings continued even as new construction proceeded on the Twin Towers' replacement, the new One World Trade Center, which was opened in November 2014.

The World Trade Center site, often referred to as "Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. The site is bounded by Vesey Street to the north, the West Side Highway to the west, Liberty Street to the south, and Church Street to the east. The Port Authority owns the site's land (except for 7 World Trade Center). The original World Trade Center complex stood on the site until it was destroyed in the September 11 attacks. The Port Authority of New York and New Jersey (PANYNJ), Silverstein Properties, and the Lower Manhattan Development Corporation (LMDC) have overseen the reconstruction of the site as part of the new World Trade Center, following a master plan by Studio Daniel Libeskind. Developer Larry Silverstein holds the lease to retail and office space in four of the site's buildings.

Hotel Attraction was a proposal by architect Antoni Gaudí for a skyscraper in Lower Manhattan, New York City.

Construction of New York City's One World Trade Center was deferred until 2006 because of disputes between the Port Authority of New York and New Jersey and the developer. Tishman Realty & Construction is the selected builder. The building reached ground level on May 17, 2008, and was topped out on May 10, 2013. One World Trade Center opened to tenants on November 3, 2014, and One World Observatory opened to the public on May 28, 2015.

The Austin J. Tobin Plaza, also known as the World Trade Center Plaza, was a large public square that was located on the World Trade Center site from 1966 until its destruction during the September 11 attacks in 2001. It covered 5 acres (220,000 sq ft; 2.0 ha), making it the largest plaza in New York City by acreage at the time. The plaza opened on April 4, 1973, and was renamed after Austin J. Tobin in 1982. Several sculptures were located there, including The Sphere and Ideogram. The plaza was damaged by a car bomb in the 1993 World Trade Center bombing, and it was destroyed eight years later in the September 11 attacks.

The Marriott World Trade Center was a 22-story, 825-room hotel at 3 World Trade Center within the World Trade Center complex in Manhattan, New York City. It opened in April 1981 as the Vista International Hotel and was the first major hotel to open in Lower Manhattan south of Canal Street since 1836. It was also known as World Trade Center 3 [WTC 3 or 3 WTC], the World Trade Center Hotel, the Vista Hotel, and the Marriott Hotel throughout its history. The hotel was damaged in the 1993 World Trade Center bombing. It was destroyed beyond repair as a result of the September 11 attacks, due to structural damage caused by the collapse of the Twin Towers, specifically the South Tower. The hotel was not replaced as part of the new World Trade Center complex, but does share its name with 3 World Trade Center.

The World Trade Center is a mostly completed complex of buildings in the Lower Manhattan neighborhood of New York City, U.S., replacing the original seven buildings on the same site that were destroyed in the September 11 attacks. The site is being rebuilt with up to six new skyscrapers, four of which have been completed; a memorial and museum to those killed in the attacks; the elevated Liberty Park adjacent to the site, containing the St. Nicholas Greek Orthodox Church and Vehicular Security Center; and a transportation hub. The 94-story One World Trade Center, the tallest building in the Western Hemisphere, is the lead building for the new complex. The buildings are among many created by the World Trade Centers Association. The original World Trade Center included the Twin Towers, which opened in 1973 and were the tallest buildings in the world at the time of their completion. They were destroyed on the morning of September 11, 2001, when al-Qaeda-affiliated hijackers flew two Boeing 767 jets into the complex in a coordinated act of terrorism. The attacks on the World Trade Center killed 2,753 people. The resulting collapse of the World Trade Center caused structural failure in the surrounding buildings as well. The process of cleaning up and recovery at the World Trade Center site took eight months, after which rebuilding of the site commenced. After years of delay and controversy, reconstruction at the World Trade Center site started. The new complex includes One World Trade Center (aka, the Freedom Tower), 3 World Trade Center, 4 World Trade Center, 7 World Trade Center, and one other high-rise office building being planned at 2 World Trade Center. The new World Trade Center complex also includes a museum and memorial, and a transportation hub building that is similar in size to Grand Central Terminal. 7 World Trade Center opened on May 23, 2006, making it the first of five skyscrapers to have been completed in the World Trade Center complex. 4 World Trade Center, the first building completed as part of the site's master plan, opened on November 12, 2013. The National September 11 Memorial opened on September 11, 2011, while the Museum opened on May 21, 2014. One World Trade Center was opened on November 3, 2014. The World Trade Center Transportation Hub opened to the public on March 4, 2016, and 3 World Trade Center opened on June 11, 2018. 2 World Trade Center's full construction was placed on hold in 2009.