4. Luxe Swiss Chalet London, UK
The house is a feast for the senses from the off. Guests enter through an indoor garden, crossing over a Japanese-style bridge over a koi carp pool. A living wall separates the kitchen fully fitted with the finest appliances that Gagganau has to offer from the dining area with its Swarovski crystal dining table for 18 guests. The mansion offers four of the most luxurious bathrooms you had ever seen, with one of them including gilded Italian washbasins that cost more than $23k and copper bathtubs that are worth $12k.