First houses were made of mud.so they got washed away every time it rained.

Next architects went wild - take the temple that was deliberately built to tilt, the bouncy castle made of stone, and the office block with the features of a car.

Now the sky's the limit. Who'll be next to break the record for the tallest building in the world?

This mind-boggling guide opens the window on awesome architects and barmy builders.

Meet the con man who built up his bank balance by selling Big Ben and the architect who got lost in his own building.

Visit a palace full of mirrors, the woman with a door in her foot and a castle made of ice.

PLUS design your own superstar skyscraper,If you want to be in the know, get The Knowledge!