A massive marble pedestal is all that remains of a column that towered over Constantinople for 1300 years.

It's believed that this small church was connected to the Hagia Sophia via a secret tunnel.

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

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

Have tea in a cemetery with a dazzling view of Istanbul.

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

This elevator was built in 1907 to connect two neighborhoods separated by a steep, rocky cliff.

An underground network of massive stone arches and their skylit vaults support ruins of portico structures above.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

Luminaries of all stripes have sipped strong Greek coffee at this cafe since 1839.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

This church was constructed on the site where St. Philip the Apostle preached to the ancient Athenians.

Catch raucous live performances of traditional tunes at this old-school taverna.

This historic stadium was built to host the first-ever FIFA World Cup.

A funerary monument for two brothers who served in the Roman cavalry.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

Nestled at the southern end of the Bay of Vlore in Albania resides ruins that contain Illyrian, Greek, and Roman influences.

The oldest café in Montevideo preserves its history as the city's bohemian hub.

An epic sculpture depicting a wagon and straining oxen.

The remains of Uruguayan hero José Artigas lie beneath a monument in Montevideo’s main square.

A replica of a famous Greek statue adorns the front of the unusual home of architect and alchemist Humberto Pittamiglio.

Constructed on the ruins of a convent, this tower saved countless lives.

Where sweethearts leave their love locks in the Uruguayan capital.

This beautiful example of neoclassical architecture is one of Uruguay's most treasured cultural gems.