1. The Multicultural
Where: Nevada’s Las Vegas
Total Expense: $3.9 billion * Completed Year: 2010
The five-star Cosmopolitan hotel in Las Vegas, Nevada, is well-known for both its breathtaking skyline views and its residential-style rooms, many of which have private patios. This hotel typically costs $383 per night to stay at, yet this price fluctuates a lot like practically all hotels in Vegas.

Shutterstock/The Cosmopolitan ©TMP: A Moment in Time
At a cost of $3.9 billion, the Cosmopolitan was finished in late 2010 and joined the elite group of expensive hotels in Las Vegas. The Blackstone Group owns the Cosmopolitan, which has a 4/5 TripAdvisor rating based on generally positive feedback from guests.
