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

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

Gargantuan home of Russian science.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

Stalinist skyscraper built with help of cryotechnology.

Thirteen sculptures in central Moscow graphically depicting vices of the modern world.

Home of the future Emperors of Russia.

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

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

The "Mystery and Company of Merchant Adventurers" is an Elizabethan-era hangout in Moscow.

Former headquarters of the KGB.

Museum design and public transportation meet in this unique Russian train car.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

The world's largest reflecting pool is just two centimeters deep.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

America's "second most important bell" is a contentious spoil of the Civil War.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.