Empire State Building Tallest. While the gateway arch is america's tallest monument, several buildings, such as new york's empire state building (1250 feet) and chicago's sears tower (1454 feet). On the empire state building beat what tower to become the world’s tallest?

Empire state building the tallest building in the world when it was completed in april 1931, the empire state broke every record in the book. It was the world's first building to contain more than 100 floors, and was also the world's tallest building from 1931 until 1972. The construction was made between the years 1930 to 1931.