The grassy landscape is home to the world's last truly wild horses.

This grand hydraulic installation has provided water for townspeople since the Middle Ages.

The largest salt lake in the Sahara is mysteriously alluring.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

Founded in 670, this ancient mosque is an architectural time portal.

This museum in the famously blue neighborhood of Sidi Bou Saïd showcases a traditional Tunisian lifestyle.

An ancient burial ground believed to have been used for ritual sacrifice.

The best-preserved Roman small town in North Africa.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

The home of half the world's population of critically endangered mountain gorillas.

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

This tourist village in Nairobi celebrates the traditional lifestyles and customs of Kenyan tribes.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

One of the world's tallest statues is also one of its most hated.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Every hour a secret compartment drops from this giant pocket watch, revealing a lovely surprise.

The largest shot tower in Australia is a unique reminder of industrial ammunitions history.

Ancient barriers wrap around what was once an important stop along the Silk Road.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.