The Boeing Factory in Everett, Washington, is the world's largest building - spanning 98 acres – and it is so big it even ...

Designed to resemble a sundial, the world’s largest solar building opened in 2009. Its 800,000 square feet of space is festooned with thousands of solar panels and features exhibit halls, scientific ...

A massive factory built to construct the world's biggest airliners has its own fire department, shops, and even a nursery ...

A proposal has been submitted to build a new skyscraper in San Francisco that would eclipse the city's 61-story Salesforce Tower and become the tallest building on the West Coast. Mayor Daniel Lurie ...

From the Freedom Tower to the Sears Tower, here are the tallest buildings in all 50 states and DC, ranked by height.

At 310 metres, the Varso Tower in Poland is one of the tallest buildings in Europe. Cezary Warś/dpa This summer, the 53-floor Varso Tower in Warsaw is set to open an observation deck at a height of ...