Some of these hotels were evacuated due to warfare, natural disasters, or nuclear accidents, while others were simply abandoned due to economic troubles — but all of them are equally haunting.

Anneliese Michel was just 23 when she died in 1976 after undergoing 67 exorcisms, during which she was restrained, genuflected in prayer so many times that she broke her knees, and eventually stopped eating.

Measuring two feet long, these unique relics were also made of iron — even though the Iron Age wouldn't begin here for another few centuries.

These bewildering out-of-place artifacts, or OOPArts, often seem too advanced for their time and place, leading to wild theories about advanced ancient civilizations and even aliens.

Some are believed to have been executed by gibbeting, in which the condemned was suspended above the ground while wrapped in chains, leaving them to die slowly of starvation or exposure as passersby watched their suffering.

Ever since the Grateful Dead debuted in the 1960s, they've counted a massive following of enthusiastic fans, the most devoted of which are known as Deadheads.

For nearly two decades beginning in the 1960s, neo-fascist militants and far-left organizations carried out bloody attacks across Italy in an effort to destabilize the government.

This "Good Shepherd" depiction shows Jesus tending to rams, sheep, and goats, something rarely seen in Christian iconography today.

Brachycephalus lulai is less than half an inch long and lives in a three-square-mile area of southern Brazil's Serra do Quiriri mountain range.

Legendary rock drummer Keith Moon died in London on September 7, 1978 after accidentally overdosing on a sedative meant to help with his alcoholism.