Kensington Palace
This is an extremely decorative building located in the Billionaires Row of London valued at $140 million. Roman Abramovich, a Russian billionaire and the owner of an investment firm called Millhouse LLC owns this building. Special features of the palace include an auto museum, a tennis court, and a health center.
 17 Upper Phillimore Gardens
This is a 10-bedroom mansion in London whose owner is the founder of ANTIAIDS Foundation and daughter of Ukraine’s second president, Leonid Kuchma. The mansion is valued at $128 million which contains an underground swimming pool, gym, sauna and a panic room. The interior of the building is covered with marble and gold and decorated with awesome artworks.