Cost: $440 Million
Monaco is one of the most expensive cities in the world, so it’s not surprising that it tops the list for most expensive apartments in the world. This penthouse is located in the Odeon Tower, one of the tallest buildings in all of Europe. With five levels, it offers stunning views of the Mediterranean Sea no matter where you may be in the unit.
Those five stories contain more than 33,000 square feet of living space. Some amenities in the unit include a gym, sauna, cinema, library, whisky bar, and billiard room. The terrace also contains a water slide and infinity pool, where guests can enjoy unparalleled views of the city. If you’ve got $400 million burning a hole in your pocket, this penthouse could be yours.