Union Station, also known as New Haven Railroad Station or simply New Haven, is the main railroad passenger station in New Haven, Connecticut. Designed by noted American architect Cass Gilbert, the beaux-arts Union Station was completed and opened in 1920 after the previous Union Station was destroyed by fire. It served the New York, New Haven and Hartford Railroad until it fell into decline, along with the rest of the railroad industry in North America after World War II. It was shuttered in 1972, leaving only the under-track 'subway' open for passengers, and listed on the National Register of Historic Places on September 3, 1975, but it was almost demolished before the Northeast Corridor Improvement Project came to the rescue in 1979.