Unbelievable Construction Fails That Actually Happened

The Daredevil Door

Every home has this door, but underneath is a really cool swimming pool surrounded by trampolines, so no danger.

Will Smith turned down the role of Neo in the Matrix. He starred in Wild Wild West instead.
Tears contain a natural painkiller, which reduces pain and improves your mood.
There is a fish with transparent bones and white blood.
Crayola is literally "oily chalk."