Housed in an old British jail, this spot serves up Georgian, Russian, and Ukrainian specialities with a side of Turkish history.

A surprising and unconventional mosque hidden in the subsoil of Istanbul.

One of the most exquisite Lycian hilltop citadels in Turkey.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

Climb a set of vertiginous stone steps to the top of this impressive ancient edifice.

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

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

A fountain standing as a testament to a doomed alliance.

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

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

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

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

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

This eatery re-creates dishes from the Ottoman Empire so you can dine like a sultan.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Inside this gallery is amazing folk art from across Mexico.

An artist's suburban abode looks like an architectural fever dream.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

Ancient snack bar of the Roman Empire re-opened.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Drink wine handed out through a window as part of an age-old tradition.

Named after a Mexican president, who once lived nearby, this park in a residential Mexico City neighborhood packs a whole lot of history into a small space.

A colorful "forest" made entirely from three tons of recycled plastic waste.

A series of mosaics in Mexico City's Historic Center celebrate the Basque Country's "eighth province"—its diaspora.