The Most Useless MegaProjects Around The World

Here is a short description about some useless megaprojects around the world:
Naypyidaw of Myanmar: The city was built as the new capital of Myanmar. It took a cost of 4 to 5 billion dollars but very few people live in this city. Shopping malls and roads are deserted.
Ciudad Real International Airport, Spain: The airport was built at a cost of one billion euros but closed after just three years.
A Highway in Aloha, Hawaii: The highway was built at a cost of $100 million but was never used because it was too steep for cars to drive on.