Stromboli is a small volcanic island in the Tyrrhenian Sea, just off the north coast of Sicily. Referred to by some as the "Lighthouse of the Mediterranean," Stromboli is in a constant state of mild volcanic activity, so don't venture out on a hike without an experienced guide.

Livingston is a small coastal town in Guatemala's Izabal department, situated where the Río Dulce meets the Caribbean Sea. Unlike much of the country's interior, Livingston is reached primarily by boat, with regular water transport connecting it to Puerto Barrios and Río Dulce. The town is surrounded by tropical vegetation, waterways, and Caribbean coastline, giving it a distinct geographic setting within Guatemala.

This cultural capital and university city holds more than 2,000 years of history and is the cultural hub of Germany. Marvel at the gorgeous twin-spired Cologne Cathedral, known for its gilded medieval reliquary and sweeping river views, or lose yourself in one of Colonge's many museums for a few hours. Cologne boasts of having most pubs per person in Germany, so make sure you sit down for a refreshing regional Kölsch beer during your travels!

Bartolomé Island, one of the most iconic destinations in the Galápagos archipelago, is known for its dramatic volcanic landscape and the postcard-perfect view from its summit. Just off the east coast of Santiago Island, this uninhabited islet draws visitors for its unique terrain with lava flows, spatter cones, and a rust-colored cinder cone that rises sharply above the sea.

Lake McDonald, nestled within the heart of Glacier National Park, Montana, is a picturesque jewel that captivates visitors with its serene beauty and outdoor activities. As the largest lake in the park, Lake McDonald stretches over 10 miles (16 kilometers) long and is renowned for its crystal-clear waters, vibrant colors, and stunning backdrop of rugged mountains.