18 East 50th Street

Burger Heaven was a family owned diner-style burger restaurant in New York City, established in 1943. It closed its final location in February 2020 citing the increase in "delivery culture".

50th Street is a street in the New York City borough of Manhattan. The street runs eastbound from 12th Avenue, across the full width of the island, ending at Beekman Place and carries the M50 bus line, which returns on 49th Street. The following subway stations serve the street, west to east: 50th Street at Eighth Avenue serving the A, ​C, and ​E trains 50th Street at Broadway serving the 1 and ​2 trains 47th–50th Streets – Rockefeller Center at Sixth Avenue serving the B, ​D, ​F, , and ​M trains

St. Patrick's Cathedral is a Catholic cathedral in the Midtown Manhattan neighborhood of New York City. It is the seat of the Archbishop of New York as well as a parish church. The cathedral occupies a city block bounded by Fifth Avenue, Madison Avenue, 50th Street, and 51st Street, directly across from Rockefeller Center. Designed by James Renwick Jr., it is the largest Gothic Revival Catholic cathedral in North America. The cathedral was constructed starting in 1858 to accommodate the growing Archdiocese of New York and to replace St. Patrick's Old Cathedral. Work was halted in the early 1860s during the American Civil War; the cathedral was completed in 1878 and dedicated on May 25, 1879. The archbishop's house and rectory were added in the early 1880s, both by James Renwick Jr., and the spires were added in 1888. A Lady chapel designed by Charles T. Mathews was constructed from 1901 to 1906. The cathedral was consecrated on October 5, 1910, after all its debt had been paid off. Extensive restorations of the cathedral were conducted several times, including in the 1940s, 1970s, and 2010s. St. Patrick's Cathedral is clad in marble and has several dozen stained glass windows. It measures 332 feet (101 m) long, with a maximum width of 174 feet (53 m) at the transepts. The bronze doors that form the cathedral's main entrance on Fifth Avenue are flanked by towers with spires rising 329.5 feet (100 m). The northern tower contains nineteen bells, and the interior has two pipe organs. Inside is a nave flanked by several chapels; two transepts; a chancel and apse; and a crypt. East of the apse are the rectory, Lady chapel, and archbishop's residence facing Madison Avenue. The cathedral is a New York City designated landmark and is listed on the National Register of Historic Places.

The Saks Fifth Avenue flagship store is a department store in Midtown Manhattan, New York City, within the luxury shopping district on Fifth Avenue between 49th and 50th Streets. The original 10-story structure at 611 Fifth Avenue has served as the flagship store of Saks Fifth Avenue since its completion in 1924. The store also occupies part of 623 Fifth Avenue, a 36-story tower completed in 1990. The original Saks Fifth Avenue Building was designed by Starrett & van Vleck in the classical style. It contains a facade made of Indiana limestone, brick, and cast-stone, with chamfered corners on Fifth Avenue at 49th and 50th Streets. Saks Fifth Avenue was the first department store on Fifth Avenue to comply with the 1916 Zoning Resolution, with setbacks on its upper floors. The tower addition at 623 Fifth Avenue was designed by Lee Harris Pomeroy Associates and Abramovitz Kingsland Schiff. The tower is partially designed in the style of the original structure. The Saks Fifth Avenue Building was planned in the early 20th century by Horace Saks, head of Saks & Company, which had a flagship store at Herald Square. The building was constructed from 1922 to 1924 as "Saks-Fifth Avenue", a joint venture between Saks and his cousin Bernard Gimbel. Saks Fifth Avenue later became a department store chain in its own right, and the Fifth Avenue store became a flagship location. The original building was designated a New York City Landmark in 1984 to allow the development of the 623 Fifth Avenue tower annex. Over the years, the store has undergone numerous modifications.

The Villard Houses are a set of former residences comprising a historic landmark at 451–457 Madison Avenue between 50th and 51st Streets in the Midtown Manhattan neighborhood of New York City. Designed by the architect Joseph Morrill Wells of McKim, Mead & White in the Renaissance Revival style, the residences were erected in 1884 for railroad magnate Henry Villard. They comprise a portion of the Lotte New York Palace Hotel, the main tower of which is to the east. The building comprises six separate residences in a "U"-shaped plan, with wings to the north, east, and south surrounding a courtyard on Madison Avenue. The facade is made of Belleville sandstone, and each house consists of a raised basement, three stories, and an attic. Among the artists who worked on the interiors were artist John La Farge, sculptor Augustus Saint-Gaudens, and painter Maitland Armstrong. Some of the more elaborate spaces, such as the Gold Room, dining room, and reception area in the south wing of the complex, still exist as part of the New York Palace Hotel. The houses were commissioned by Henry Villard, president of the Northern Pacific Railway, shortly before he fell into bankruptcy. Ownership of the residences changed many times through the mid-20th century. By the late 1940s, the Roman Catholic Archdiocese of New York had acquired all of the houses, except the northernmost residence at 457 Madison Avenue, which it acquired from Random House in 1971. The New York City Landmarks Preservation Commission designated the complex an official landmark in 1968, and the residences were listed on the National Register of Historic Places in 1975. As part of the construction of the New York Palace Hotel, completed in 1980, the north wing was turned into office space for city preservation group Municipal Art Society.

The Carnegie Corporation of New York is a philanthropic fund established by Andrew Carnegie in 1911 to support education programs across the United States, and later the world. Carnegie Corporation has endowed or otherwise helped to establish institutions that include the United States National Research Council, what was then the Russian Research Center at Harvard University (now known as the Davis Center for Russian and Eurasian Studies), the Carnegie libraries and the Children's Television Workshop. It also for many years generously funded Carnegie's other philanthropic organizations, the Carnegie Endowment for International Peace (CEIP), the Carnegie Foundation for the Advancement of Teaching (CFAT), and the Carnegie Institution for Science (CIS). According to the OECD, Carnegie Corporation of New York’s financing for 2019 development increased by 27% to US$24 million.

Tower 49 is an office skyscraper in the Midtown Manhattan neighborhood of New York City. The lot has frontage on both 48th and 49th Streets between Fifth Avenue and Madison Avenue. The street frontages were offset by about the width of an NYC brownstone lot on both sides.The firm of Skidmore, Owings and Merrill devised a "simple crystalline form" of two chamfer-cornered masses joined by the central service core and wrapped in blue-tinted mirror glass.Tenants include the Major League Baseball Players Association and Inbox Insight. Tower 49 is one of the few buildings to have a registered trademark symbol as part of its official name.

Prime Burger was a restaurant in New York City. The business was named one of "America's Classics" by the James Beard Foundation Awards in 2004.

Lotte New York Palace Hotel is a luxury hotel in the Midtown Manhattan neighborhood of New York City, at the corner of 50th Street and Madison Avenue. It was originally developed between 1977 and 1980 by Harry Helmsley. The hotel consists of a portion of the Villard Houses, built in the 1880s by McKim, Mead & White, which are New York City designated landmarks and listed on the National Register of Historic Places. It also includes a 51-story skyscraper designed by Emery Roth & Sons and completed in 1980. The Villard Houses, arranged in a U-shaped plan, consist of three wings surrounding a central courtyard on the east side of Madison Avenue. The houses' center wing serves as a lobby, while the south wing serves as an event space. Behind the Villard Houses to the east is the modern skyscraper addition. As of 2021, the hotel has 909 rooms and suites. The top floors of the skyscraper are known as the Towers, which consist of 176 luxury units. Among the units in the Towers are four ornate triplex suites, each with their own decorations, as well as four other specialty suites. The Helmsley Palace Hotel opened in 1981 and was operated by Helmsley until 1992. As part of a bankruptcy proceeding, it was sold in 1993 to the Sultan of Brunei, who completely renovated the hotel and Villard Houses. The government of Brunei took over the hotel from the royal family in the late 2000s. Northwood Investors, an American real estate investment firm, bought the hotel from the government of Brunei in 2011 and renovated it. The hotel was sold again in 2015 to Korean luxury hotel operator Lotte Hotels & Resorts, which renamed it the Lotte New York Palace Hotel.

Tower Fifth is a skyscraper proposed for Midtown Manhattan in New York City. The developer, Macklowe Properties, has completed other projects including the redevelopment of the General Motors Building and construction of 432 Park Avenue. Plans for the structure were first revealed in January 2019, and the developer continued purchasing buildings to create an assemblage in 2019, closing on a building in March 2020, and continuing to eye buildings in June 2020. Demolition permits were first filed in April 2020.It will be 1,556 feet (474 m) tall. If completed as planned, it will become the fifteenth tallest building in the world and the tallest in New York City by roof height, surpassing the nearby Central Park Tower by about 6 ft (2 meters).

Chateau Moderne was a Manhattan night club which was popular in the 1930s. It was located in a no longer extant building at 42 East 50th Street, between 5th and Madison Avenues. The establishment entered a not guilty plea to income tax evasion in Manhattan United States Federal Court on July 19, 1939.In 1935 Chateau Moderne was renovated with the bar being moved forward to provide room for a sensational stage show. It reopened on September 14, 1935. Singer Nora Lee King, a Decca Records recording artist, entertained at the night club in November 1941.Matchbook

Olympic Tower is a 51-story, 620 ft-tall (190 m) building at 641 and 645 Fifth Avenue, between 51st and 52nd Streets, in the Midtown Manhattan neighborhood of New York City. Designed by Skidmore, Owings & Merrill (SOM), the mixed-use development contains condominium apartments, office space, and retail shops. The tower is named after Olympic Airlines, whose president Aristotle Onassis jointly developed the tower with the Arlen Realty and Development Corporation between 1971 and 1974. It was the first skyscraper to be constructed within a special zoning district to encourage retail and mixed-use development along Fifth Avenue. The building's glass facade is designed to reflect St. Patrick's Cathedral immediately to the south. The superstructure is made of steel on the lower stories and cast concrete on the upper stories. The first two stories contain a public atrium, Olympic Place, which connects the 51st and 52nd Street facades. The next 19 stories contain office space while the top 30 stories contain 230 condominium apartments. Upon Olympic Tower's completion, architectural writers such as Ada Louise Huxtable and Christopher Gray criticized its design. Construction of Olympic Tower dates to the late 1960s, when Best & Co. sought to build an office tower above their store at Fifth Avenue and 51st Street. Morris Lapidus was initially hired for the project, but the plans were changed after the zoning district was created. When the building was completed, wealthy non-American buyers purchased most of its residential units. Crown Acquisitions bought Olympic Tower from its original owners in the 2010s.