Structure built from the skulls of vanquished foes.

Huge stairway leads to this massive gallery.

Half of the Pulitzer Prize-winning author's ashes were buried in Armenia.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

One man’s collection of photography books has transformed into a charming exhibition space.

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

Despite producing just a handful of movies, a brave and lyrical filmmaker has an entire museum dedicated to him.

An abused and forgotten metropolis, abandoned for centuries.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

This famous city eluded concrete detection until the early 2000's.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

A tiny park in the middle of some big power politics.

A surprising and unconventional mosque hidden in the subsoil of Istanbul.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

One of the largest wooden constructions in Europe was meant to be a casino, but soon became an orphanage.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

Mausoleum and Holy Seat of Antiochus I of Commagene.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.