Known to backpackers as the "Steps of Doom," this walkway carved into the side of a seaside cliff leads to the Roman Tombs.

The tomb of one of the greatest travelers in history.

The rubbery beast is sculpted from recycled materials.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

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

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

Sofia's legislative center is continuously reinventing itself.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

According to Greek mythology, this natural spring is the home of a freshwater nymph.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

In one of the world's smallest countries, a royal's personal winery is open to the public.

Browse through a century of this principality's first popular export.

The kitsch mansion of the former Romanian president Nicolae Ceaușescu features a golden bathroom.

Walk in the footsteps of the gods and straddle two tectonic plates.

In the heart of Tirana, this underground nuclear bunker has been transformed into a museum.

A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

This historic electric train has operated with regularity since the early 1900s.

This enormous censer uses a pulley system installed over 400 years ago.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.