{"name":"Grand Central Terminal","city":"New York City, New York","canonical_url":"https://gydeinfo.com/new-york-city/places/grand-central-terminal/","markdown_url":"https://gydeinfo.com/new-york-city/places/grand-central-terminal.md","updated_at":"2026-06-19T23:50:27.439300+00:00","facts":[{"claim":"The Main Concourse celestial ceiling at Grand Central was reported in 1913 as reversed left-to-right, with east and west swapped.","citation":"https://www.nytimes.com/1913/03/23/archives/constellations-reversed-new-grand-central-ceiling-has-the-heavens.html","source_title":"Grand Central's Backwards Sky and Tiffany Clock","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:48.920988+00:00"},{"claim":"The ceiling’s design was based on Johann Bayer’s 1603 star atlas, Uranometria, and the mural contains a known directional inaccuracy rather than a perfect sky map.","citation":"https://www.nytimes.com/1913/03/23/archives/constellations-reversed-new-grand-central-ceiling-has-the-heavens.html","source_title":"Grand Central's Backwards Sky and Tiffany Clock","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:48.920988+00:00"},{"claim":"Contemporary accounts and later historical explanations say the reversal was noticed soon after opening and may have resulted from transferring a floor reference image upward, flipping it during painting.","citation":"https://www.nytimes.com/1913/03/23/archives/constellations-reversed-new-grand-central-ceiling-has-the-heavens.html","source_title":"Grand Central's Backwards Sky and Tiffany Clock","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:48.920988+00:00"},{"claim":"Grand Central’s exterior Tiffany glass clock faces 42nd Street and was restored in a lengthy, piece-by-piece project that took 12 years.","citation":"https://www.nytimes.com/1913/03/23/archives/constellations-reversed-new-grand-central-ceiling-has-the-heavens.html","source_title":"Grand Central's Backwards Sky and Tiffany Clock","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:48.920988+00:00"},{"claim":"The Grand Central clock is widely described as Tiffany-made, but the attribution is contested because no Tiffany signature was found on the original glass pieces and Tiffany experts have questioned the claim.","citation":"https://www.nytimes.com/1913/03/23/archives/constellations-reversed-new-grand-central-ceiling-has-the-heavens.html","source_title":"Grand Central's Backwards Sky and Tiffany Clock","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:48.920988+00:00"},{"claim":"The clock is described in historical accounts as 13 feet in circumference/diameter-sized glass and was called the largest piece of Tiffany glass in the world when installed, though this wording varies by source.","citation":"https://www.nytimes.com/1913/03/23/archives/constellations-reversed-new-grand-central-ceiling-has-the-heavens.html","source_title":"Grand Central's Backwards Sky and Tiffany Clock","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:48.920988+00:00"},{"claim":"The Whispering Gallery at Grand Central Terminal is located near the Oyster Bar and is a real, well-known feature of the station.","citation":"https://away.mta.info/articles/grand-central-terminal-tour-secrets-fun-facts-history/","source_title":"The Whispering Gallery at Grand Central","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:42.922114+00:00"},{"claim":"Visitors can stand in diagonal corners of the lower-level chamber and whisper so the sound carries across the curved space.","citation":"https://away.mta.info/articles/grand-central-terminal-tour-secrets-fun-facts-history/","source_title":"The Whispering Gallery at Grand Central","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:42.922114+00:00"},{"claim":"The effect is associated with the Guastavino tilework and the vaulted ceiling in the area.","citation":"https://away.mta.info/articles/grand-central-terminal-tour-secrets-fun-facts-history/","source_title":"The Whispering Gallery at Grand Central","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:42.922114+00:00"},{"claim":"The whispering-gallery effect at Grand Central is a known acoustic phenomenon caused by the gallery’s curved, hard surfaces and is not unique to New York.","citation":"https://away.mta.info/articles/grand-central-terminal-tour-secrets-fun-facts-history/","source_title":"The Whispering Gallery at Grand Central","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:42.922114+00:00"},{"claim":"The feature is often described as either an intentional design choice or an accidental byproduct, but popular accounts do not establish a definitive historical consensus on which it was.","citation":"https://away.mta.info/articles/grand-central-terminal-tour-secrets-fun-facts-history/","source_title":"The Whispering Gallery at Grand Central","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-19T23:15:42.922114+00:00"},{"claim":"The MTA provides station hours, transit connections, and timetables for Grand Central Terminal.","citation":"https://www.mta.info/stations/grand-central-terminal","source_title":"Grand Central Terminal - MTA","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:10.390484+00:00","fact_type":"admission","as_of":"2026","confidence":0.9},{"claim":"The Metro-North ticket office hours at Grand Central Terminal are daily from 5:10 a.m. to 2 a.m.","citation":"https://www.mta.info/stations/grand-central-terminal","source_title":"Grand Central Terminal - MTA","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:10.390484+00:00","fact_type":"hours","as_of":"2026","confidence":0.99},{"claim":"Grand Central Terminal connects to the New York City Subway at 42 St-Grand Central.","citation":"https://www.mta.info/stations/grand-central-terminal","source_title":"Grand Central Terminal - MTA","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:10.390484+00:00","fact_type":"location","as_of":"2026","confidence":0.97},{"claim":"Grand Central Terminal states that it is open daily, with specific times provided on the official website.","citation":"https://grandcentralterminal.com/","source_title":"Grand Central Terminal - Make Everyday Grand","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:09.587033+00:00","fact_type":"hours","as_of":"2026","confidence":0.88},{"claim":"The official site lists subway access via the 4, 5, 6, 7, and S lines.","citation":"https://grandcentralterminal.com/","source_title":"Grand Central Terminal - Make Everyday Grand","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:09.587033+00:00","fact_type":"location","as_of":"2026","confidence":0.9},{"claim":"The official site lists Metro-North and LIRR as train access options.","citation":"https://grandcentralterminal.com/","source_title":"Grand Central Terminal - Make Everyday Grand","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:09.587033+00:00","fact_type":"location","as_of":"2026","confidence":0.92},{"claim":"The Main Concourse is known for its sky-themed ceiling and four-faced opal clock.","citation":"https://www.remitly.com/blog/travel/grand-central-terminal/","source_title":"Grand Central Terminal Travel Guide 2026 - Remitly","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-19T23:05:08.779604+00:00","fact_type":"architecture","as_of":"2026","confidence":0.92},{"claim":"A common meeting point inside the terminal is under the clock at the main Information Booth.","citation":"https://www.remitly.com/blog/travel/grand-central-terminal/","source_title":"Grand Central Terminal Travel Guide 2026 - Remitly","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-19T23:05:08.779604+00:00","fact_type":"anecdote","as_of":"2026","confidence":0.86},{"claim":"The departure boards on the south side of the Main Concourse are a notable visitor reference point.","citation":"https://www.remitly.com/blog/travel/grand-central-terminal/","source_title":"Grand Central Terminal Travel Guide 2026 - Remitly","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-19T23:05:08.779604+00:00","fact_type":"location","as_of":"2026","confidence":0.83},{"claim":"Grand Central Terminal was an innovative engineering achievement built without interrupting existing train service.","citation":"https://www.asce.org/about-civil-engineering/history-and-heritage/historic-landmarks/grand-central-terminal","source_title":"Grand Central Terminal | ASCE","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:07.180221+00:00","fact_type":"architecture","as_of":"1913","confidence":0.98},{"claim":"Grand Central Terminal officially opened on February 2, 1913, and drew more than 150,000 visitors on opening day.","citation":"https://www.asce.org/about-civil-engineering/history-and-heritage/historic-landmarks/grand-central-terminal","source_title":"Grand Central Terminal | ASCE","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:07.180221+00:00","fact_type":"history","as_of":"1913","confidence":0.99},{"claim":"Grand Central Terminal's two-level design separated long-haul and suburban traffic and used pedestrian ramps to improve movement.","citation":"https://www.asce.org/about-civil-engineering/history-and-heritage/historic-landmarks/grand-central-terminal","source_title":"Grand Central Terminal | ASCE","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:05:07.180221+00:00","fact_type":"architecture","as_of":"1913","confidence":0.99},{"claim":"Grand Central Terminal is a commuter rail terminal at 42nd Street and Park Avenue in Midtown Manhattan, New York City.","citation":"https://en.wikipedia.org/wiki/Grand_Central_Terminal","source_title":"Grand Central Terminal - 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