â¢ EX (noun) The noun EX has 3 senses: 1. a man who was formerly a certain woman's husband. 2. a woman who was formerly a particular man's wife. 3. the 24th letter of the Roman alphabet. Familiarity information: EX used as a noun is uncommon.
Superior Dome, Michigan. For just shy of a decade, the Tacoma Dome in Washington State held the title as the world's largest wooden dome. But the Superior Dome in Marquette, Michigan, wrestled away the moniker in 1991 by opening up at 536 feet in diameter, just six feet more than the Tacoma structure.
Tokyo Skytree, Tokyo, Japan in 2014. The world's tallest artificial structure is the 829.8 m (2,722 ft) tall Burj Khalifa in Dubai, United Arab Emirates. The building gained the official title of Tallest Building in the World and the tallest self supported structure at its opening on January 9, 2010.