The only Roman honorific column in Istanbul.

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

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

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

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

The farmhouse owned by the Danish author who wrote "Out of Africa" is now a museum honoring her legacy.

A glass and sculpture wonderland forms an oasis in a remote part of Kenya.

A plain wooden seat that once belonged to one of the most prominent figures of the Protestant Reformation.

On the side of a building, a depiction of the woman who became a local legend by tossing soup out her window.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

One of the most historical literary characters continues to stroll his hometown.

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Large Hadron Collider and the Birthplace of World Wide Web.

Elaborate tile work in this railway station tells the story of Portugal.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

Exploring the wilder, more passionate sibling of Erg Chebbi feels like discovering a secret sun-kissed planet from another galaxy.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.