The tallest buildings in the world are not always the most expensive. Here is a list of the most expensive buildings in the world, completed or under construction.
The Palace of Parliament in Bucharest, Romania, began construction in the 1980s and still is in the top 5 of the most expensive buildings in the world!
Standing at 828 meters or 2,716.5 feet, and completed in 2010, Dubai's Burj Khalifa remains the tallest building in the world. Check out the full dataset listing the current top 100 towers in the world and their details.