The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

This 1920s Dutch barge is now a floating bookstore.

An unassuming London park is actually a pilgrimage site for modern clowns.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Immortal combat in a Moscow museum.

An incredibly random collection of wax figures is displayed in a shopping center walkway.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

This newly renovated Soviet-era outdoor exhibition center is bigger than the principality of Monaco.

Stalinist skyscraper built with help of cryotechnology.

The tallest hotel in Europe.

Moscow's imposing monument to the Space Age.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Former headquarters of the KGB.

Museum celebrating the achievements of the Soviet space program.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.