In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

No one knows the origin of this creepy little stone man with an oversized phallus.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

This strange statue features a bust of the famous composer plopped atop a woman's body.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

A symbol of Texas pride.

This sculpture of a bowler hat is complemented by a matching umbrella a few blocks away.

Once disputed as the largest sundial in the world.

The sea urchin sculpture is an unusual commemoration of a New England town's seafaring history.

Painstakingly built dioramas sit unnoticed in a Boston office building.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

What may be Boston's finest Art Deco building, located in the city's Financial District.

These whimsical works of art tell the story of the city's past and present.

This historic Boston building has gone from personal estate to porn theater and back again.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

Ice cream stand, snack bar, and time capsule of milk conveyance.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.