World's largest door

When it comes to the world's largest door, there's not just one, in fact there are four and they all belong to NASA's Vehicle Assembly Building at the Kennedy Space Center.

The Vehicle Assembly Building was originally built to assembly of Apollo and Saturn vehicles and and is now used to support Space Shuttle operations.

Each of the four doors are 139 meters or 456 feet high, comparatively, the Statue of Liberty is only 93 meters or 305 feet high.

NASA's Vehicle Assembly Building