The world's tallest building from 1931 to 1977, the Empire State Building is topped with a stepped Art Deco pinnacle that's floodlit at night and boasts holiday and commemorative colors throughout the year. After admiring the mosaics in the Art Deco lobby, take an elevator ride to the 86th or 102nd floor and get ready to drink in astounding 360-degree views from this iconic skyscraper observatory.