Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

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

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

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

One of the biggest Buddhist stupas in Europe, hidden from most locals.

A self-proclaimed libertarian micro-state on a tiny bit of disputed territory between Serbia and Croatia.

This building has survived for more than a century and remains virtually untouched.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

Louis Sullivan’s dark, swirling cast-iron designs envelop a popular department store in this Chicago landmark.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Illegal drag racing two stories beneath Chicago’s streets.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

A hot dog stand where the heads are just as hot as the dogs.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Beloved bar home to musicians of all eras and reputations.