Charlie explores a giant sandcastle, a farm that floats on the ocean, the world's tallest single-family home, and other one-of-a-kind wonders, and he meets some scientists who pretend they live on Mars.
Charlie visits a kaleidoscopic house fit for a Canadian Batman, a Mexican house that floats on 160,000 plastic bottles, and a Hobbit cottage in Scotland, and meets their eccentric owners.
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