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Photo: Photographer: unknown, Public domain via Wikimedia Commons
The original subway station, and quite a marvel to witness--the chandeliers and ornate tiling are a sharp contrast to the nearby Brooklyn Bridge-City Hall station. There's one catch, though: it's been closed since 1945. However, you can see it by staying on the downtown 6 train after its last stop Brooklyn Bridge-City Hall; it will turn around in the old station. This is the one place in the system where this is allowed, and the announcements reflect that. The Transit Museum (in Downtown Brooklyn) offers occasional tours as well, which allow you to actually walk around the station, but you must be a museum member and a US citizen, making this an impractical choice for most visitors.
The City Hall station, also known as City Hall Loop station, is a closed station on the IRT Lexington Avenue Line of the New York City Subway. It is located under City Hall Park, next to New York City Hall, in the Civic Center neighborhood of Manhattan in New York City. The station was constructed for the Interborough Rapid Transit Company (IRT) as the southern terminal of the city's first subway line, which was approved in 1900. Construction of the segment of the line that includes the City Hall station started on September 12 of the same year. The station opened on October 27, 1904, as one of the original 28 stations of the New York City Subway. As ridership grew, it was deemed infeasible to lengthen the original platform to accommodate ten-car trains. The station was closed on December 31, 1945, because of its proximity to the Brooklyn Bridge station. Since then, the platform has remained unused, while its track continues to be used as a turning loop.
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On a triangular city block between Broadway, Park Row and Chambers Street sits City Hall, a gorgeous gleaming white building completed in 1812, which still hosts the mayor's office and the New York City Council chambers. The building itself is fenced off and only accessible by tour, but there is a lovely park surrounding the building, with plenty of shady trees and a pleasant fountain just to the south of the building. Just north of City Hall and on the same block is the Tweed Courthouse, a gorgeous government structure and the legacy of Tammany Hall boss William M. Tweed, who used the courthouse project to embezzle large sums of money from the city budget and was convicted in a courtroom in this building.
For most of the 18th century, Africans in New York City were buried in a graveyard outside the city. The graveyard was eventually forgotten and was rediscovered in 1991. This museum and memorial site commemorate the estimated 15,000 Africans that were interred on the site of the memorial. Note that the museum is located inside of a Federal building so airport-style security should be expected.
David N. Dinkins Manhattan Municipal Building
With New York City growing and not enough space in the City Hall building, this 40-story structure was built to meet the space demands of the city government. Completed in 1915, it is a massive and very grand building with the gilded statue of a woman standing atop the building's spire.
A 2011 addition to the Lower Manhattan skyline, this 76-story residential skyscraper by the noted Frank Gehry has a distinctive rippled, "wavy" facade that is quite eye-catching. It is best viewed from City Hall Park and the Brooklyn Bridge.
Built in 1766, the chapel is an active part of the Parish of Trinity Church and is Manhattan's oldest public building in continuous use. It is the only remaining colonial church in New York City and was George Washington's place of worship after he was inaugurated as president. Since 2001, the chapel has been known for surviving the events of 9/11 without even a broken window - despite being across the street from the World Trade Center - and for its role as a place of refuge for the WTC recovery workers in the days that followed.
The One World Trade Center skyscraper rises 1,776 feet above the street and is the tallest building in the United States (and for that matter, the Western Hemisphere). Despite its colossal size, its simple design allows it to blend remarkably well into the Lower Manhattan skyline. An observation deck on the top floors offers 360-degree views of the city.