It's HUGE! It stands at 180 feet tall. It’s weight is 15,500,000 pounds and it is 518 feet around.
There are also 11,324 tiles on the outer layer of the dome. These tiles are made from alucobond panels, which is a sheet of polyethylene plastic sandwiched between two layers of aluminum.
Spaceship Earth looks like a full sphere but as Disney is so great at doing, it is a trick. It is really two structural domes with one a the bottom and one at the top.
There's a secret lounge. Directly above the post-show area there is a VIP lounge that has been used over the years for the sponsors to relax and have meetings
If you stand under the dome when it’s raining, you won’t get wet. There's a gutter system that takes the rain water off the shell and transports it to Epcot’s World Showcase Lagoon.
It has hidden Mickeys! Hidden Mickeys are everywhere throughout Walt Disney World and the Epcot theme park and Spaceship Earth is no different.
It has a trap door. At the top of the dome there is a trap door that leads up to the roof in order to do maintenance on the outside. Can you imagine the fantastic view from up there?