Seattle's most famous skyline site is undergoing a $100 million renovation. The latest addition to the iconic tourist attraction is "The Loupe," which is a see-through floor that goes around in a circle, allowing 360-degree views to those brave enough to sit or stand 500 feet above street level on the new observation deck.

A total of 10 layers of glass make up the floor, and the revolving happens as the result of 12 motors. Also set to get a glass floor is the already rotating SkyCity restaurant.

The Space Needle was among the structures built for the 1962 World Fair. The restoration, which began in 2017, also featured the discovery of a forgotten time capsule that was opened 15 years late.