The JPMorgan Chase Tower, formerly Texas Commerce Tower, is a 305.4-meter (1,002-foot), 2,243,013-square-foot (208,382.7 m2), 75-story skyscraper at 600 Travis Street in Downtown Houston, Texas, United States.
It is currently the tallest building in the city, the tallest building in Texas, the tallest five-sided building in the world, the 22nd-tallest building in the United States, and the 107th-tallest building in the world.
The tower was built between 1979 and 1981 as the Texas Commerce Tower. It was designed by noted architects I. M. Pei & Partners.
The lobby of JPMorgan Chase Tower has been designed to harmonize not only with the height of the structure but also with the portico of Jones Hall.
The sky lobby observation deck is located on the 60th floor. The sky lobby acts as a transfer point for persons traveling to the upper (61–75) floors, but also as an observation deck for the building tenants.
According to en.wikipedia