Who owns Dubai's Burj Khalifa, world's tallest building? Its not Sultan of UAE, the name is...
The Burj Khalifa was also designed with sustainability in mind. It collects an impressive 15 million gallons of water ...
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Observation tower, with longest steel slide in U.S., nearing completion in Virginia Beach
The Nautilus Tower, an 65-foot observation tower boasting the United States' longest stainless steel slide, is taking shape in Virginia Beach.