Lake Toba is another of the island's spectacular sights - a remarkable volcanic crater set in the middle of northern Sumatra, 176km from Medan. The lake is huge (the largest in South-East Asia), occupying the caldera of a giant volcano that collapsed on itself after a massive eruption some 100,000 years ago.

Algeria, the largest country in Africa, offers a travel experience that’s both surprising and unforgettable. From the Mediterranean coastline to the vast expanse of the Sahara Desert, the country is full of contrast and color. In Algiers, visitors can wander the narrow lanes of the Casbah, a UNESCO World Heritage site filled with Ottoman palaces, secret stairways, and local life echoing centuries of history.

The largest city in Sichuan Province and a port-of-call on the Yangtze River. Located at the heart of where the Jialing and Yangtze Rivers meet, this beautiful combination of ancient and modern will take your breath away.

Mali, located in West Africa, is a country with deep cultural roots and a history that stretches back to some of the most powerful empires in Africa.

Rábida Island is one of the most visually striking islands in the Galápagos, known for its deep red volcanic shoreline and quiet, unspoiled atmosphere. Located near the center of the archipelago, the island is geologically young, with iron-rich lava giving its beaches a dramatic rust-colored hue.