After his master John Gray died in 1858, Greyfriars Bobby spent the next 14 years guarding his grave, leaving just once a day to eat.

A city of over 300,000 people, Yakutsk is just 300 miles south of the Arctic Circle and becomes so cold in the winter that residents don't wear eye glasses outside because they freeze to the skin.

From Malcolm X and Albert Einstein to the Civil War and the Great Depression, these colorized old photographs bring history to life like never before.

The Gibson Girl first appeared in the 1890s illustrations of artist Charles Dana Gibson and helped inform the beauty standards for American women of the time — for better and for worse.

From flying saucer rides to domestic living on the lunar surface, these gorgeous retrofuturism illustrations show how previous generations thought the future might look.

From elk to boars to dogs, Chernobyl's animals have found an unexpected haven for wildlife in the Red Forest of the Exclusion Zone.

Also known as Burg Eltz, Eltz Castle is situated on the Elzbach River in southern Germany and is still occupied by descendants of the family that built it 850 years ago.

Indiana University sophomore Lauren Spierer disappeared on June 3, 2011 after a night out with friends at a bar in Bloomington — and hasn't been seen since.

Through her titillating photoshoots, Bettie Page showed a pious and restrictive mid-century society how fun and freeing a woman’s sexuality could be.

Though the 40-foot statue of Zeus lorded over the Olympic Games for 800 years, it somehow vanished from history.

After his mother pulled him out of school for a spontaneous three-day road trip in May 2011, Timmothy Pitzen disappeared — and hasn’t been seen or heard from since.