Is the World Trade Center tallest building in world?

The World Trade Center is not the tallest building in the world. The tallest building in the world is the Burj Khalifa, located in Dubai, United Arab Emirates. The Burj Khalifa stands at 829.8 meters (2,722 feet) tall. The World Trade Center, located in New York City, United States, was the tallest building in the world until it was destroyed in the terrorist attacks of September 11, 2001.