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.

Located in North-central Pennsylvania, Williamsport is a vibrant town, famous for being both the "Lumber Capital of the World" and the birthplace of Little League Baseball.

In Chile's arid Norte Grande, only one river in 700 miles of coastline makes it to the sea. Many towns have never experienced rainfall and depend on "Fogcatchers" to collect the morning dew for drinking water.

Dresden, the capital of Saxony, is a city where history, culture, and beauty seamlessly intertwine. Known as the "Florence on the Elbe," Dresden boasts a stunning array of baroque and rococo architecture that captivates visitors from around the world. Dresden hosts the world's oldest Christmas market, the Striezelmarkt, dating back to 1434.

A lovely small hilltop town that overlooks a tiny bay. Narrow, winding streets lined with souvenir shops lead down to the charming marina.