0 Highest Glass Bottomed Elevator

"Lifting off April 9, 2008, the CN Tower introduces North America's first and the world's highest glass floor paneled elevator as one of its glass-fronted elevators now offers a thrilling new perspective on the view - 346m (1,136 ft) straight down. The enhanced elevator includes two glass floor panels each almost 2 1/2 in thick which when combined total 5¼ square feet of floor space." - CN Tower Portal

"Tower experts claim it can hold the weight of 14 hippos. But since they'd never be able to fit in the cage, there's plenty of room for everyone else." - City News

"Made with five centimeter-thick glass, Ms. Knight said that much like the glass floor of the tower's main pod, the glass elevator panels were designed using the same technology, strength and durability standards. You could stand and jump on them, but we want people to concentrate on the view." - National Post