Bringing new meaning to "ocean-view room," the Hydropolis hotel is the world's first underwater luxury resort. It will sit 66 feet below the surface of the Persian Gulf and feature 220 guest suites.
The Burj Khalifa is the tallest building in the world. Located in downtown Dubai, it was completed in 2009.
At over 828 metres (2,716.5 feet) and more than 160 stories, Burj Khalifa holds the following records:
Tallest building in the world
Tallest free-standing structure in the world
Highest number of stories in the world
Highest occupied floor in the world
Highest outdoor observation deck in the world
Elevator with the longest travel distance in the world
Tallest service elevator in the world