60 Hudson Street, formerly the Western Union Building, is a 24-story Art Deco telecommunications hub in Tribeca, Manhattan. Designed by Ralph Thomas Walker and built between 1928 and 1930, it features asymmetrical massing, setbacks, and a gradient brick facade. Originally Western Union's headquarters, it was once the world's largest telegraph building. Today, it serves as a major colocation center and internet hub. The building's exterior and lobby were designated New York City landmarks in 1991.