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.

Papua New Guinea is a land of surprises, where misty highlands give way to tropical coasts and vibrant festivals stir every sense. In the Highlands, the air carries the echoes of ceremonial drums and elaborate sing‑sings like the famed Goroka Show, where over 100 tribes gather in September to perform dances adorned with feathered headdresses, body paint, and the haunting clay masks of the Asaro Mudmen.

Illinois, a state known for its rich history and diverse attractions, offers a wealth of experiences for visitors. Chicago, its largest city, is a dynamic hub of culture and innovation. The iconic Millennium Park features the striking Cloud Gate sculpture, affectionately known as "The Bean," which reflects the city skyline in a captivating way. Just a short walk away, the Art Institute of Chicago houses an impressive collection of artworks, including Grant Wood’s famous “American Gothic”.

Madaba sits on Jordan’s central plateau, known for a long history that stretches from biblical times through the Roman and Byzantine periods.

Bulgaria is a republic in southeastern Europe. The capital and largest city is Sofiya. Bulgarian culture has been influenced successively by Byzantine, Greek, Russian, and Western cultures.