A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

An unusual artwork dedicated to a unique man that entertained people visiting Cambridge while raising money for charity.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

This restaurant's specialty is "a major enigma for food historians."

These relics of the city's past now exist as a prominent modern feature.

This theater opened in 1998, but both the building and the puppeteers who perform there have a distinguished history.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

An ornate private entrance to the Vienna subway built specifically for the emperor.

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

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

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

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

Baroque celebration of the end of the Great Plague of Vienna.

Op-art architecture designed for happiness.

The only subway station in the city that still makes use of gap fillers.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

A diminutive statue that was inspired by the sculptor's own daughter.

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

The world's largest wooden structure.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

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