9. The Cosmopolitan, USA ($4.27 billion)
No matter how far we go to look for most expensive man made attractions, it seems to lead us back to Las Vegas, United States. The Cosmopolitan is also the most expensive building in United States and the fourth most expensive in the world.
Built in 2010, the construction cost was $3.9 billion or $4.27 billion today. This building has 52 floors and 184-meter height. Designed by Friedmutter Group with Arquitectonica, it is currently owned by The Blackstone Group.
Like most casino resorts in Vegas, The Cosmopolitan features top class retails, fine dining restaurants, theaters, nightclub, and of course luxury hotel and casino.
Las Vegas never sleeps. Party goes all day in this part of the world. Here in the Cosmopolitan resort, you get to party day and night at the popular Marquee Nightclub & Dayclub.