Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

After the parade, students throw their beads on the tree hoping for good luck on exams.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

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

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

A surreal statue honoring Prague's favorite literary son.

Looming communist pillar with a Czech twist.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

Send a postcard while vacationing with Satan.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

Georgia's first brewery is also one of its oldest surviving buildings.

This kitschy tavern is also home to rare early editions of "Treasure Island."