Light still pours into the ruins of this ancient Islamic observatory.

The Avenue of Mausolea is a series of grand palatial tombs.

The oldest Buddhist monastery in Mongolia has survived centuries of invasions, political shifts, and religious purges.

A mysterious phallic rock on the grounds of a Buddhist monastery.

Enormous statue of the Emperor of the Mongols.

A uniquely authentic display of traditional Russian culture.

This massive glowering Lenin head gazes out over eastern Siberia.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

Church built on the site where the last tsar of Russia and his family were killed.

Hidden in a metro shop under a shopping mall, this small museum tells the story of one of the world's largest urban transit systems.

A museum dedicated to controversial Russian pianist Alexander Scriabin.

Home of the future Emperors of Russia.

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

Former headquarters of the KGB.

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

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

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

Venture into the hideout of one of Hong Kong's legendary pirates.

Climb to the top of the world's largest seated bronze Buddha.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

One of the world's tallest flagpoles.