Moscow's imposing monument to the Space Age.

Former headquarters of the KGB.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

A small and surprising passageway in Saint Petersburg devoted to the Beatles.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

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

Palace where the nearly un-killable Rasputin was murdered.

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.

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

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

Mesoamerican monoliths and zoomorphic stones covered in royal visages, ancient mythology, and grand celestial events.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

The jewel of the museum is a rare tumulus, a funeral decoration from the 18th century.

This bridge over the River Cuale leads to a neighborhood that was once an escape for Hollywood's elite.

From Nunavut to Tierra del Fuego, you won't find any lighthouse higher than this one.

Things roll uphill on this Mexican street that seems to defy gravity.

The former headquarters of a leader in the Mexican Revolution, and the site of an often-reproduced image.

The conquistador's former fortress is the oldest preserved colonial building in the Americas.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Past the hills and beyond the graveyard, this church feels extremely out of place.