The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

A surreal statue honoring Prague's favorite literary son.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Singapore's landscaping project is home to 18 incredible Supertrees.

A sprawling nature preserve harbors the world's only living dragons.

One of the holiest places in the region, devotees come to Tirta Empul to bathe in the holy spring water.

An ancient stone fortress considered by many to be the eighth wonder of the world.

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

Huge stairway leads to this massive gallery.

This museum holds the most comprehensive collection of Armenian art in the world.

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

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

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

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

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

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

Ancient rock-hewn town that witnessed key events of Georgian history.

A museum glorifying the life of Stalin, located in the city of his birth.

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

The legendary wooden horse that stands in modern Troy is a prop from the 2004 Wolfgang Petersen film.