2. Marina Bay Sands
Construction cost: $5.5 billion
Location: Singapore
Owner/Investor: Las Vegas Sands
Second Las Vegas Sands property on our list, Marina Bay Sands holds double honors of being the most expensive casino and the most expensive hotel in the world. The hotel features 2,561 rooms, museums, celebrity chef restaurants and other attractions and amenities. The complex was officially opened in 2010.
