The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

This hidden gem is bathed in beautiful natural light.

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

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

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

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

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

Mausoleum and Holy Seat of Antiochus I of Commagene.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

Large miniature theme park with 100-plus models.

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

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

The best-preserved ancient theater in the world.

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

Ottoman-era houses lovingly preserved.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

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

A meow-velous tribute to a beloved street cat, made famous on the internet.

An abused and forgotten metropolis, abandoned for centuries.

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

Hidden just under the waters around this Turkish island are the ruins of a once great city.

A marvel of Byzantine engineering under the streets of Istanbul.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A deadly ancient portal to the underworld.