The celebrated eyesore created by starry-eyed sweethearts.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The last bastion of Roman presence north of the Alps looms over a German town.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The fairy tale castle of the "fairy-tale king."

A Seattle oddities shop brimming with Victorian-era gems and antique curio.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Try not to get slimed in Tribeca.

Not for the faint of heart, this long pedestrian bridge rewards those who brave the wobbly walk with a beautiful view.

This First Nations monument is a peaceful spot with vast views of the Calgary prairie.

As if T-rex wasn't big enough, this Canadian monument is four times larger than the real thing.

Few other hotels can rival the grandeur of the Castle in the Rockies.

This whimsical fountain pays tribute to Toronto's four-legged friends.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

Of course the grave of JFK's assassin is surrounded by conspiracy theories.

This downtown Dallas art installation is always on the lookout.