Beijing has a 20,000-acre secret underground city, Dìxià Chéng, that was built during the Cold War by 300,000 people digging by hand
The ‘Spockmania’ of the 1960s Surprised Leonard Nimoy
The bad news is the alleged “yeti” remains are those of a bear, but the good news is researchers now understand more about Himalayan bears
In 1980, chemist Glenn Seaborg solved a centuries-old problem in alchemy and turned a non-precious metal into gold
Malham Cove: A Harry Potter location and briefly the highest “single drop” waterfall in England
Nine Soviet hikers who fled their tent one night and died: the mystery of the Dyatlov Pass
Behind Mount Rushmore there is a titanium vault called “The Hall of Records”
Star Wars: Famous actors who auditioned to play Han Solo
Chemist Humphry Davy was the first person in history to inhale laughing gas, and soon he was doing it three times a day
Killdozer: When one man snapped and, with his modified bulldozer, destroyed 13 buildings in Colorado
