15. Encore at Wynn Las Vegas
Where: Nevada’s Las Vegas
Completed Year: 2010;
Total Cost: $5.22 Billion
In Las Vegas, Nevada, there is a $5.22 billion complex called the Wynn Las Vegas & Encore. Entailing the uber-glam Wynn brand, which brings in millions of dollars annually from visitors to Sin City, are Wynn Las Vegas and Encore, its sister hotel.

Encore at Wynn Las Vegas: bookingdotcom/Pinterest
Total accommodations in the two opulent buildings include 4,478 hotel rooms, villas, and suites. Reviewed by travelers as two of the best hotels in Vegas, both have received high marks from previous guests. The cost of a room can range from $150 to $1,000 per night, depending on the season and kind of accommodation.
