Legend says this demonic carving inside a medieval cathedral was one of Satan's minions.

This vast collection of smoking pipes from across the world spans centuries.

One of three sites in England that house the National Collection of Arms and Armour.

Central Europe's largest collection of mini-bottles is on display at this museum devoted to a bitter Hungarian liquor.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

Museum dedicated to the terror regimes of Hungary.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

This Funeral Hearse Museum represents the finest in cadaver transportation.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A stately palace has been converted into the world's largest cannabis museum.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

The Liverpool street made famous by the Beatles is real.

The world's first successful water-powered cotton mill paved the way for the factories of the British Industrial Revolution.

The site of the world's first modern seismometer.

This Neolithic stone circle is the most complete of its kind in Scotland.

An ancient stone with mysterious origins stands in a residential neighborhood.

This extraordinary Viking artifact has traveled throughout the city.

Now home to a drinking establishment, this building has a macabre history.

The most loyal of little dogs, or a Victorian era publicity stunt?

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.