Rubin Schron, who goes by Ruby, is a New York City real estate investor, landlord and the founder of Cammeby's International Group.
 He has a personal net worth of well over $10 billion, according to data company Real Capital Analytics.
 The portfolio of Cammeby's, which Schron founded in 1967, includes office buildings, market-rate and government-subsidized apartment complexes, nursing homes, the 16-building complex in Sunset Park now known as Industry City, a stake in the bottom half of Woolworth Building and industrial properties scattered across Long Island.
 In 2013, Schron made an unsolicited and unsuccessful offer to buy the Empire State Building for $2 billion, but he has not had problems closing many other deals throughout his long career.
 In 2003, an investment group led by Schron paid $600 million for a portfolio of about 6,000 outer-borough apartments from Donald Trump.
 Other buildings he owns include the Monterey, a 521-unit rental multifamily building on Manhattan's Upper East Side; over the decades, Schron has also amassed a portfolio of Mitchell-Lama apartment buildings whose values have been skyrocketing to record values, after reverting to market rates when government subsidies expired.
 In 2007, he sold nearly 4,000 units of former Mitchell-Lama properties in five complexes in Harlem and on Roosevelt Island for $940 million.
 Schron, who practices Orthodox Judaism, has eight children and 50 grandchildren.
 He and his family have lived in the same single-family home in Brooklyn for many decades.
The Transportation Building is a 44-story office building located at 225 Broadway on the corner of Barclay Street in the Civic Center neighborhood of Lower Manhattan in New York City.
 It also carries the address 2-4 Barclay Street.
 It was built in 1927 and was designed by the architecture firm of York & Sawyer, in the Renaissance Revival style, using setbacks common to skyscrapers built after the adoption of the 1916 Zoning Resolution.
 It sits across Barclay Street from the Woolworth Building.
Abraham M. Radcliffe (1827–1886) was an architect born in New York City.
 He opened a Minneapolis office in 1857 and a St. Paul office in 1858.
 He closed his Minneapolis office in 1868.
 He designed early commercial buildings in St. Paul and Minneapolis, as well as the Dakota County Courthouse in Hastings, Minnesota.
 Radcliffe inspired the architectural career of Cass Gilbert, the skyscraper pioneer who designed the Woolworth Building in New York City and the United States Supreme Court building, among many important public structures.
William Street is a street in the Financial District of Lower Manhattan, New York City.
 It runs generally southwest to northeast, crossing Wall Street and terminating at Broad Street and Spruce Street, respectively.
 Between Beaver Street and Broad Street, the street is known as South William Street.
 Between Beekman Street and Spruce Street, in front of New York Downtown Hospital, William Street is pedestrian-only.
The Woolworth Building, at 233 Broadway, Manhattan, New York City, designed by architect Cass Gilbert and constructed between 1910 and 1912, is an early US skyscraper.
 The original site for the building was purchased by F. W. Woolworth and his real estate agent Edward J. Hogan by April 15, 1910, from the Trenor Luther Park Estate and other owners for $1.65 million.
 By January 18, 1911, Woolworth and Hogan had acquired the final site for the project, totaling $4.5 million.
 More than a century after its construction, it remains, at 241.4 m , one of the 100 tallest buildings in the United States as well as one of the 30 tallest buildings in New York City.
 It has been a National Historic Landmark since 1966, and a New York City landmark since 1983.
Nassau Street is a street in the Financial District of New York City.
 It is located near Pace University and City Hall.
 It starts at Wall Street and runs north to Spruce Street at the foot of the Brooklyn Bridge, located one block east of Broadway and east of Park Row, in the borough of Manhattan.
The Petroleum Building (formerly known as the Hogan Building) is a highrise in downtown Midland, TX.
 The building was built in 1928 and consists of 12 floors and has a neo-gothic style architecture to it.
 The building stands at 137 ft but with its spires reaches a height of 151 ft. The Hogan building is a registered, Texas historical landmark.
 The tower is named for lawyer and oil entrepreneur Thomas Stephen Hogan.
 For information on Hogan, see article on Jacob Bunn.
 The design of the Petroleum Building, like the Woolworth Building in New York City and the Baum Building in Oklahoma City, utilizes many classic architectural devices.
 Gothic spires and Moorish arches, lavish carved surfaces and opulent marble, all intended to clothe the business house with the respectability of a cathedral.
 Thomas Stephen Hogan intended his building to be a landmark and (Fort Worth architect-engineer) Wyatt Hedrick designed a building that people would talk about.
 However, behind the ornate cast-stone façade was (sic) functional reinforced concrete, the finest equipment available, and the determination of one man to establish Midland as the headquarters of the West Texas oil fields.
90 West Street (alternatively West Street Building) is a building in Lower Manhattan, New York City.
 It was designed by architect Cass Gilbert and structural engineer Gunvald Aus for the West Street Improvement Corporation.
 When completed in 1907, the building's Gothic styling and ornamentation served to emphasize its 23-story height, and foreshadowed Gilbert's later work on the Woolworth Building.
 Originally built as an office building, the main tenant was the Delaware, Lackawanna and Western Railroad and the top floor was occupied by Garret's Restaurant, which advertised itself as the "world's highest restaurant".
8 Spruce Street, originally known as Beekman Tower and currently marketed as New York by Gehry, is a 76-story skyscraper designed by architect Frank Gehry in the New York City borough of Manhattan at 8 Spruce Street, between William and Nassau Streets, in Lower Manhattan, just south of City Hall Park and the Brooklyn Bridge.
122 Leadenhall Street, officially known as the Leadenhall Building, is a 225 m (737 ft) tall building on Leadenhall Street in London.
 The commercial skyscraper, opened in July 2014, was designed by Rogers Stirk Harbour + Partners and is informally known as "The Cheesegrater" because of its distinctive wedge shape.
 It is one of a number of new tall buildings recently completed or currently under construction in the City of London financial area, including 20 Fenchurch Street, 22 Bishopsgate, and The Scalpel.

Question: 8 Spruce Street and Woolworth Building, in New York City, are both which type of tall buildings?
Answer: skyscraper