For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This clifftop arch is a natural stunner.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

The walls and streets of the ancient city are peppered with penises.

Sip whey-based vodka at the first Native-owned distillery opened on a reservation in centuries.

An oddly poignant roadside attraction celebrating American folklore.

Gambling, boozing, and yodeling animals cover the walls of this dive bar cum natural history museum.

Tirelessly maintained by a Wisconsin man named JFK.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Why walk on this historical site when you can zoom down instead?

The once highest point in China blends symbolic design with a kick of adrenaline.

This quirky roadside attraction provides insight into Minnesota's logging history.

Inside this store, a mysterious statue draws visitors from the world over.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A military museum and library dedicated to the citizen soldier.