This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

It's believed a local adventurer spent 50 years living inside this cave.

Stonehenge has nothing on Castlerigg’s views.

A museum in England’s Lake District dedicated to the trusty pencil wants you to know the story of their World War II spy pencils.

A stone copper was sculpted on the wall of the Carlisle Cathedral to honor a local hero.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A fearsome dragon clings to a corner of Munich's city hall.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This snug medieval lane is one of the narrowest streets in the world.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

A haven for wildlife amid the farmlands and development of the Willamette River Valley.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

Each summer, the migratory bats living beneath the bypass form "batnadoes" at dusk.

A tiny survivor of the Donner Party disaster.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.