This episode explores the most bizarre architectures on the planet, including the world's tallest family home, a modern Noah Ark, a farm that floats on the ocean, a giant sandcastle and a rotating house. The host meets some scientists who pretend they live on Mars and visits the spectacular mansion This episode explores the most bizarre architectures on the planet, including the world's tallest family home, a modern Noah Ark, a farm that floats on the ocean, a giant sandcastle and a rotating house. The host meets some scientists who pretend they live on Mars and visits the spectacular mansion of the world's richest kid.