This station is a part of NYC subway built and once operated by the Interborough Railway Transit IRT. It's popular for its bohemian architecture and lavish chandeliers but its opulence was lost on busy commuters because usage wasn't much to begin with. This was for two reasons. Firstly, its curved platform restricted use of center doors on rail cars. Secondly by 1923, it was the only station without turnstiles and since the nearby Brooklyn Bridge stop had more visitors due to its close proximity to connecting streetcars, commuters along this track dwindled further. Cut to 2017, City Hall station is not only still in use and but also open to public as an exhibit.Hours: 11 a.m - 8 p.mEntry fee: Unguided tours are free and guided tours are $50.