This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The middle finger of modernity.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

Stockholm's narrowest alley is barely over two feet wide.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Sweden's "good old days" painstakingly re-created in a model village.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

It houses the remains of a 17th-century version of the Titanic.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

A late-night restaurant empire was launched from this humble storefront.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

In Midtown Atlanta, tons of marble appears to be devouring a Fiat Panda at this unique art installation.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Northern Ireland's Brobdingnagian stepping stones.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Macabre astrological automaton clock dating to the late 1400s.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

Spain's largest bullring offers a unique glimpse at architecture and history.