One Logan Square

Two Logan Square is a highrise office building in Center City Philadelphia just off the Benjamin Franklin Parkway. The building is known for its signature roofline with a backlit clock. It is a companion building to One Logan Square which stands across Cherry Street, and to Three Logan Square, across 18th Street. The building, designed by the firm Kohn Pedersen Fox, was completed in 1987, the same year as One Liberty Place, which stood as Philadelphia's tallest building for 20 years. The building's name is a nod to its neighborhood, Logan Square, so named for the nearby Logan Circle, one of William Penn's original five squares of Philadelphia. Major tenants include the law firm Troutman Pepper LLP and Binswanger. Previously the private school Delaware Valley High School had its administrative offices in Suite 1900.

The Bell Telephone Company Building is a historic 17 story skyscraper located at 1835 Arch Street in the Logan Square neighborhood on the edge of downtown Philadelphia, Pennsylvania which was used as a long distance telephone exchange by the Bell Telephone Company. Its construction in 1925 marked the beginning of the era of long distance trunk lines in telephone communication. The building was listed by the National Register of Historic Places in 2000.

The Cathedral Basilica of Saints Peter and Paul, head church of the Roman Catholic Archdiocese of Philadelphia, is located at 18th Street and the Benjamin Franklin Parkway, on the east side of Logan Square in Philadelphia. It was built between 1846 and 1864, and was designed by Napoleon LeBrun, from original plans by the Reverend Mariano Muller and the Reverend John B. Tornatore, with the dome and Palladian facade, designed by John Notman, added after 1850. The interior was largely decorated by Constantino Brumidi. The cathedral is the largest Catholic church in Pennsylvania, and was listed on the U.S. National Register of Historic Places in 1971. The cathedral has been the site of two papal Masses, one celebrated by Pope John Paul II in 1979, and the other by Pope Francis in 2015. The current rector of the cathedral is the Reverend Gerald Dennis Gill and the current archbishop of Philadelphia is Nelson J. Perez.

Three Logan Square, formerly the Bell Atlantic Tower, is a 55-story skyscraper located in Philadelphia, Pennsylvania. Standing 739 ft (225 m) tall to its structural top, the building encloses 1,300,000 square feet (120,000 m2) of office space. The building, designed by the Philadelphia-based architecture firm Kling Lindquist, was completed in 1991. A city ordinance dictates that no building within 250 feet (76 m) of the nearby Benjamin Franklin Parkway may rise taller than 250 feet (76 m); the tower stands just outside this zone. A landscaped plaza, constructed of the same red granite as the building, occupies the rest of the plot, fulfilling a city requirement that 1% of the total budget for new building construction must go toward a work of public art. A banquet hall, known as Top of the Tower, occupies the top floor of the building and is available for public rentals. It was the headquarters for Philadelphia-based Baby Bell Bell Atlantic until 1996, when Bell Atlantic acquired New York City-based NYNEX and moved its headquarters to New York. In 2000, Bell Atlantic and GTE merged to become Verizon and the "Bell Atlantic" name became obsolete. However, the building's managers kept the original name, mainly because of the difficulties in getting all necessary parties to agree to change it. The building had been offered for sale in the past, and on August 5, 2010, it was sold to Brandywine Realty Trust. The company has since renamed the tower Three Logan Square, to better identify its location near two other Brandywine-owned buildings, One and Two Logan Square.

The American Commerce Center was a proposed supertall skyscraper approved for construction in Philadelphia, Pennsylvania but cancelled due to the 2008 recession. The Comcast Innovation and Technology Center now stands on the site. At 1,510 feet (460 m) tall with 63 floors, the building would have dominated the Philadelphia skyline, standing almost 400 ft (120 m) taller than Philadelphia's tallest building, the Comcast Innovation and Technology Center. The office tower would have stood on the 19th Street side of Arch Street, and been connected to a 473 ft (144 m), 26-story hotel tower and public plaza along the 18th Street side of the block. The connection would have consisted of a multi-story skybridge with a garden on top.Of several supertall skyscrapers proposed for Philadelphia (including the Center City Tower and an early version of Comcast Center), this would have been the first to be constructed.The building would have been the tallest building in the United States by official height, or the second tallest by pinnacle height (including antennas) behind the Willis Tower at 1,729.8 feet (527 m) until the completion of 1,776-foot (541 m) One World Trade Center in New York City in 2014. On June 19, 2008, Philadelphia City Councilman Darrell Clarke introduced changes for the zoning legislation around 18th and Arch Streets which was the first step towards building the tower. On November 18, 2008, the City Planning Commission signed off on legislation needed for the zoning changes. According to the Philadelphia Daily News, "the developers will have to come back for approval of their building plan if Council passes the zoning bills." On December 11, 2008, the zoning changes in question were unanimously approved by City Council.On August 19, 2011, Liberty Property Trust acquired the development site from Hill International Real Estate Partners for a reported $40 million, which equates to $612 per square-foot ($2,008 per square-meter). The same company constructed the nearby Comcast Center and Liberty Place complex. However, the project was cancelled.

The Academy of Natural Sciences of Drexel University, formerly the Academy of Natural Sciences of Philadelphia, is the oldest natural science research institution and museum in the Americas. It was founded in 1812, by many of the leading naturalists of the young American republic with an expressed mission of "the encouragement and cultivation of the sciences". It has sponsored expeditions, conducted original environmental and systematics research, and amassed natural history collections containing more than 17 million specimens. The Academy also organizes public exhibits and educational programs for both schools and the general public.

The Comcast Technology Center is a supertall skyscraper in Center City, Philadelphia. The 60-floor building, with a height of 1,121 feet (342 m), is the tallest building in Philadelphia and the Commonwealth of Pennsylvania, the fourteenth-tallest building in the United States and the tallest outside Manhattan and Chicago. The tower is located on the southwest corner of 18th and Arch Streets, one block west of the Comcast Center, the headquarters of Comcast Corporation. A hotel—the highest in the country—and restaurant are located on the top floors, while central floors contain offices for Comcast software developers and engineers, and the lowest floors have television studios and retail stores.Construction began in mid-2014 and topped out on November 27, 2017. The first personnel began moving into the building in late July 2018 and the tower was open to the public in October of that year.

The Four Seasons Hotel Philadelphia, officially the Four Seasons Hotel Philadelphia at Comcast Center, is a luxury hotel in Philadelphia that is part of the Four Seasons Hotels and Resorts group.

Arch Street Presbyterian Church is a historic Presbyterian Church at 1724 Arch Street, located between the two Comcast skyscrapers in the Logan Square neighborhood of Philadelphia, Pennsylvania. The building was designed by the architectural firm of Hoxie & Button, and built in 1855. It is a one-story, Classical Revival style building with Greek and Roman elements. It features a portico supported by four Corinthian order columns and a coffered dome.It was added to the National Register of Historic Places in 1971.

Logan Circle, also known as Logan Square, is an open-space park in Center City Philadelphia's northwest quadrant and one of the five original planned squares laid out on the city grid. The centerpiece of the park is the Logan Circle, a circular area centered on a large water feature, bounded by a traffic circle carrying 19th Street and the Benjamin Franklin Parkway (with connections to 18th and 20th streets to the east and west and Race and Vine Streets to the south and north). The circle exists within the original bounds of the square; the names Logan Square and Logan Circle are used interchangeably when referring to the park. Originally "Northwest Square" in William Penn's 1684 plan for the city, the square was renamed in 1825 after Philadelphia statesman James Logan. The park is the focal point of the eponymous neighborhood. Logan Square was added to the National Register of Historic Places in 1981.

The Philadelphia Family Court Building also known as Juvenile and Domestic Branches of the Municipal Court, is a historic building registered under National Park Service's, National Register of Historic Places. The building was constructed between 1938 and 1941. It was occupied on November 25, 1940 by the Juvenile and Domestic Branches of the Municipal Court later known as the Philadelphia Family Court. In 2014, the Philadelphia Family Court moved to a new location on Arch Street. As of 2017, the Family Court Building remains unoccupied. In 2020, the City of Philadelphia rescinded a contract with The Peebles Corporation to renovate the building after years of delay. It was announced on August 11, 2022 that the City of Philadelphia would redevelop the Family Court Building to house the African American Museum in Philadelphia.

The Swann Memorial Fountain (also known as the Fountain of the Three Rivers) is an art deco fountain sculpture located in the center of Logan Circle in Philadelphia, Pennsylvania, United States.The fountain, by Alexander Stirling Calder designed with architect Wilson Eyre, memorializes Dr. Wilson Cary Swann, founder of the Philadelphia Fountain Society. The Society had been planning a memorial fountain in honor of its late president and founder. After agreeing that the fountain would become city property, the society was granted the site in the center of Logan Circle.Adapting the tradition of “river god” sculpture, Calder created large Native American figures to symbolize the area's major streams, the Delaware, the Schuylkill, and the Wissahickon. The young girl leaning on her side against an agitated, water-spouting swan represents the Wissahickon Creek; the mature woman holding the neck of a swan stands for the Schuylkill River; and the male figure, reaching above his head to grasp his bow as a large pike sprays water over him, symbolizes the Delaware River. Sculpted frogs and turtles spout water toward the 50-foot (15 m) geyser in the center, though typically the geyser only spouts 25 ft (8 m). The use of swans is a pun on Dr. Swann's name. Eyre designed the basin and the interlacing water jets, including the central geyser. During warm months, swimming in the fountain is a long-standing Philadelphia tradition. In the summer of 2006, the City of Philadelphia began enforcing a swimming ban with a nearly constant security presence, but the ban was eliminated in 2009. Besides serving as the center of Logan Square, the Fountain also stands as the midpoint on the Ben Franklin Parkway, which includes also sculptures by two other generations of the Calder family. Stirling Calder's father, Alexander Milne Calder, designed the statue of William Penn atop the tower of City Hall at the southeast end, while, at the Philadelphia Museum of Art on the northwest end, the mobile Ghosts is by Alexander Calder, Stirling Calder's son. This led to a local wit referring to the three sculptures as the Father, the Son and the Holy Ghost. For many years the fountain was framed by a magnificent circle of Paulownia trees, which have since been replaced. The fountain was mentioned in songs by the pop punk band The Wonder Years. The song "Logan Circle" from their album The Upsides opens with "They turned on the fountain today at Logan Circle"; there are several references to the fountain and the city of Philadelphia in the band's lyrics. It is the subject of the song "Spit Fountain" by Philadelphia emo band Algernon Cadwallader. It is also featured in the Philly level of Tony Hawk's Pro Skater 2 and in an episode of the television show It's Always Sunny in Philadelphia, "Dennis Reynolds: An Erotic Life".