29°45′46.4″N 95°21′48.4″W / 29.762889°N 95.363444°W Sky Pool is a swimming pool in Houston, Texas, United States. Constructed on top of the Market Square Tower apartment complex, [1] it is billed as the "tallest" pool in Texas. [2] The pool extends out 10 feet (3 m) past the building into the air; this portion is made of 8-inch (20 cm) thick plexiglas so swimmers can view the city below from 500 feet (150 m) above the ground. [3] [4] It is supported by two concrete cantilevers, one on each side. [3] The tower and pool, finished in November 2016, were designed by Jackson and Ryan Architects. [5]