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.

Khiva, located in western Uzbekistan’s Khorezm region, is one of Central Asia’s most evocative Silk Road cities. Its walled inner city, known as the Itchan Kala, has preserved a remarkable collection of mud-brick architecture, minarets, mosques, and madrasahs that reflect centuries of Islamic culture and trade. Khiva served as a thriving trading hub and political center, linking merchants and scholars across the desert routes of the region.

Regina is the provincial capital of Saskatchewan. Covering an area of 251,699 sq. miles, this Canadian heartland is ripe with sprawling farmlands and fertile soil producing almost one-third of North America's wheat supply. The Metis people populate a sparse area of the territory's northern wilderness of lakes, swamps and forest.

Alicante, a captivating coastal city on Spain’s Costa Blanca, enchants visitors with its blend of rich history, Mediterranean charm, and vibrant nightlife. Dominated by the impressive Santa Bárbara Castle perched on Mount Benacantil, the city offers sweeping views of the turquoise Mediterranean Sea and the bustling streets below.

Galle, a coastal city in southern Sri Lanka, is a place where history and the sea are inseparably linked. Once a vital port on the spice trade routes, Galle reached its peak under Dutch colonial rule in the 17th century, when the massive Galle Fort was built.