Care to spend the night in a Transylvanian castle this Halloween?

10 places to appreciate before they vanish

Mysterious ancient stone formation in Australia is likely world’s oldest observatory

New York Public Library's iconic Rose Room reopens in full bloom

Father-daughter duo find 2-carat diamond in Arkansas state park

10 of the best ancient cave paintings

Is that a 'ghost ship' mirage on Lake Superior?

Will you recycle a cup if your name is on it?

'Planet Earth II' trailer promises unprecedented ultra-high definition access to animal kingdom

The majority of women wear size 14 or higher. So why aren't there more plus-size options?

Take a trip across Q'eswachaka, the last handwoven Inca rope bridge

Ancient Viking rune stone, missing for 200 years, unearthed in Sweden