"In what will surely go down in history as one the greatest architectural blunders..."

"... the town of Benidorm in Alicante, Spain, had almost completed its 47-story skyscraper when it realized it excluded plans for elevator shafts."

And I thought the blunder was that the building looks like a giant pair of pants. No elevators, eh?

ADDED: Apparently, the blunder is only looking like a giant pair of pants.