A former factory now pays tribute to a local industry fueled by sardines.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

18th century opera in its original splendor.

Stockholm's deepest subway station is also a stunning ecological wonder.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

300-year-old villagers houses and traditional churches preserve a nearly lost piece of Russian history.

Thousands of biblical and pagan images are carved into this small 12th-century church.

Immortal combat in a Moscow museum.

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

An iconic Soviet statue of working-class people.

Moscow's imposing monument to the Space Age.

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

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

Former headquarters of the KGB.

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

One of the world's tallest statues is also one of its most hated.

The tallest hotel in Europe.

Some Moscow residents once claimed the bizarre, contorted mass of metal on top of the building was used to manipulate minds.

This massive monument honors the first human in space.

The world's first museum dedicated to the work of game-changing naturalist Charles Darwin.

Gargantuan home of Russian science.

An early-20th-century "dacha" village of quaint cottages curiously located in a modern part of Moscow.