American rock climber Alex Honnold has ascended the Taipei 101 skyscraper without any ropes or protective equipment.

A proposed new skyscraper in downtown San Francisco would be the tallest building in the U.S. outside of New York and Chicago - bumping Philadelphia and Los Angeles down in the rankings. At 1,225 feet ...

The famous rock climber will try to pull of the dangerous stunt.

The prosperity of early 20th-century America resulted in a boom of skyscrapers that still tower over cities across the country today. Focusing on the character and craftsmanship on display at the top ...