Where Agatha Christie mysteriously disappeared in 1926.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

The tallest freestanding structure in the United Kingdom.

WWII artifacts, including the building itself.

Astonishing rock formations dot the Brimham Moor landscape.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Legends say that this small island was the final resting place of the Welsh saint of lovers.