The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Come for the flowers, stay for the bats!

Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.