Skyline jokes

What were the twin towers plains?

God's playing Jenga.

"Hello, this is your captain speaking. We are flying at a level of 89 feet. If you look out of your window on the left, you will see the World Trade Center."

I'm having lunch on the roof of the Twin Towers, and the biggest plane I've ever seen is flying toward...

Your hairline's so far up, they call it a skyline!