The 7 Most Expensive Real Estate in the World

5. 7 Upper Phillimore Gardens

Price: $128 million

Owned by Olena Pinchuk, daughter to Ukraine’s second president Leonid Kuchma, this mansion is quite extraordinary. It used to be a prep school, but was remodelled by Olena and now features an underground swimming pool, a sauna, a gym, a cinema, and a panic room. Furthermore, the interior is a sight of marble and gold, with a vast collection of valuable artworks.