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

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

Steadily reminding Czechia of its past.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Macabre astrological automaton clock dating to the late 1400s.

This memorial to a murdered empress took 20 years to design, then spent 30 years hidden away in storage.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

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

A collection of pianos and more guaranteed to delight anyone interested in music history.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

The palatial McDonald's that inspired Wesley Willis.

The world's largest collection of the world's largest objects is in one small Illinois town.

A 60-foot-tall tower provides unparalleled views of the southern Green Mountains.

A bygone village occupation lives on via this quaint public chalkboard.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

Boats and fish both find their way through this massive hydroelectric structure.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This stunning, technicolor array of geysers has occupied Ferril lake since 1908.

Drift through decades of high desert music history at this funky hometown museum.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.