Giant stone letters dedicated to the founder of Armenia's alphabet.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

Its humdrum facade only adds to its electrifying appeal: a rooftop with panoramic views of a shapeshifting metropolis.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

A gigantic collection of teeny, tiny books.

A shrine of fire worship built on top of a natural flame.

Mysterious hillside with a continuously burning natural fire.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

The world's only silo that was topped by two revolving restaurants has unfortunately been demolished.

World's largest barrel containing an inn.

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

This futuristic German television spire is actually the world's largest digital clock.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

Fantastic views and thousands of love locks.

Legendary site where an evil bishop was devoured by rodents.

A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

Metro station with a claim to rock n' roll fame.

Tiny memorials honor individual victims of the Holocaust.

The last bastion of Roman presence north of the Alps looms over a German town.