This beloved roadside attraction welcomes visitors with his signature neon smile.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

A Mexico City subway station boasts a hidden museum, complete with a working radio booth.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

Atop this former dutch railway office sits an interstellar work of art.

Water-themed sculptures guard this unusually square structure.

Sleep beneath the big screen at this old-school movie theater.

This hidden park hosts a rogue’s gallery of eccentric architectural obelisks.

This aluminum “stairway to heaven” has impaled at least a couple of birds.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

A line of disused military bunkers built to defend against Nazi invasion lies hidden on the outskirts of the city.

The first modernist church in Europe.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

A history of heat is on display at this unique Austrian museum.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The Habsburgs' royal collections of art and wonders.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

This museum promotes informed contraception by documenting its often secret past.

This cubist Vienna church building looks like some sort of alien stonehenge.

Op-art architecture designed for happiness.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

A spherical "micro-nation" in the heart of Vienna.