A small etching on the white marble parapet was written in runic script by a Viking mercenary.

The ornate miniature mansions were built for Istanbul's feathered residents.

The largest caravanserai in Cyprus also includes amazing examples of Ottoman architecture.

A crumbling cathedral condemned by an earthquake.

This no man's land slicing through the island is strewn with abandoned relics of another time.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

The history of Tel Aviv told through a work of art.

This dome-shaped mountain boasts amazing views and has a rich religious history.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

Horse cemetery on the grounds of Blarney Castle.

A stunning medieval castle owned and restored by the famed actor Jeremy Irons.

An important landmark in the history of algebraic logic.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

The largest hewn stone in history.

Commemorating the landing of William of Orange with his European army on their way to the Battle of the Boyne.

This large neolithic tomb, also known as Greengraves, is hidden off a Northern Irish road.

These sculptures honor the knights who once called Carrickfergus Castle their stronghold.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This massive monument has been telling the time for 150 years—at a slight angle.