A charming beach town in Turkey captures all the colors of the rainbow.

The ancient latrines of the Greeks, in all their public glory.

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

Ancient serpentine sacrifice holder that has stood the test of time.

A fountain standing as a testament to a doomed alliance.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

This museum was invented in a novel before being made real by the author.

1513 Turkish world map, full of European state secrets and snarky commentary.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

Roman ruins top white travertine terraces formed by ancient hot springs.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

A stunning silver lining to global warming's gloomy cloud.

An intricately carved Viking church overlooks a glistening fjord.

Home to three historic ships from the age of Vikings.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

A hidden three-foot-wide house separates these two regal churches.

One of the largest Roman settlements in Portugal.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

Explore the quarry where the marble was sourced for Michaelangelo's David.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.