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

You'll find just about anything in this funky Tbilisi flea market.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

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

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

These ruins of a Soviet children's railway station have a haunted atmosphere.

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

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

Huge stairway leads to this massive gallery.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

With over 10,000 lights, this engineering marvel lights up the city after dark.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

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

The remains of a 13th-century Norman fortress, largely destroyed by an explosive renovation.

The trials and tribulations of marking Poe’s grave.

Ancient Bronze Age rampart that was used into the middle ages.

One of Ireland's most infamous prisons for rebels including men, women and children.

Though they've since been renamed, these two streets hint at Dublin's darker days.

The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

The Dublin sea wall draws walkers, photographers, and fishing enthusiasts.