1. The Multicultural Location: Las Vegas, Nevada Total Expense: $3.9 billion Completed Year: 2010 The Cosmopolitan hotel is a luxurious five-star establishment renowned for its stunning skyline views and residential-style accommodations. Many of its rooms feature private patios, offering guests a unique and upscale experience. Average Nightly Rate: Approximately $383 (subject to fluctuation, as is… Continue reading Humanity's Top 12 Expensive Construction Builds