4. Flower Petals in Bolton, U.K.
This underground home doesn’t actually exist yet.
Former Manchester United captain Gary Neville has planning permission but hasn’t yet broken ground on this rather amazing-looking 8000 square foot home.
Designed to be energy-efficient, the petal-shaped opening are designed to let light into the house as well. Even thought it’s still just an architectural drawing, it’s so well thought out it had to be included.
