This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

Two monstrous faces loom over a village in Czechia.

This beautiful 16th-century necropolis marks an astonishing feat in heritage conservation.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Flames have been burning within this mountain for more than 2,500 years.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

There are two legends behind the origin of this unusually tall sanitary structure.

Ancient traditions and surreal birdwatching come into sharp relief along one of the world's most polluted rivers.

This remote sandstone cliff has one of the richest collections of Livonian petroglyph marks.

This ancient trail has claimed the lives of over 2,000 people.

This giant statue of a vulva became internationally famous after an American exchange student got stuck in it.

The walls and streets of the ancient city are peppered with penises.

A lush indoor jungle fills this bustling Madrid transportation hub.

These gnarly desert trees produce the prized aromatic resin traded along the ancient incense trail.

This spectacular mosque houses the second-largest chandelier in the world.

This building’s ghostly exterior reflects its former lives as a prison, school, and funeral home.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.

This lonely tomb is all that remains of a once-bustling ancient trade hub visited by Marco Polo.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

An overlooked collection of over 350,000 artistic works created by psychiatric patients using art therapy.

Eduardo Kobra’s breathtaking 32,300-square-foot graffiti wall took over Rio’s Olympic Boulevard.

This nomadic monster has divided opinions as it prowls across Canada.

These underground shelters dug by the Japanese during World War II later helped East Timor achieve its independence.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.