Jellyfish Lake is a shadowed oasis hidden among the mushroom-like Rock Islands of Palau. This forest‑fringed saltwater lake invites visitors to float with millions of gentle, stingless jellyfish that glow like drifting amber clouds under emerald light. The lake formed about 12,000 years ago, when rising seas flooded an ancient reef basin that was gradually cut off from the ocean. Over centuries, its jellyfish evolved in isolation, shedding their stings and multiplying without predators in sight.

The Elbe is one of the Central Europe's greatest rivers, rising in the northern Czech Republic, traversing through Bohemia and Germany, and flowing into the North Sea not far from Hamburg. The river and its route have been largely untouched, so wildlife visibly abounds along its wetlands and wooded regions. Other scenery includes terraced vineyards and charming wine villages.

Les Anses-d’Arlet, a charming fishing village on Martinique’s southern coast, is known for its picture-perfect blend of Caribbean warmth and local tradition. Its centerpiece is a white-sand beach backed by brightly painted houses and the landmark Church of St. Henry, whose steeple aligns beautifully with the sea when viewed from the pier.

Trabzon was founded in the 7th century B.C. by Milletain colonists. On entering the city, on a green hill descending to the sea, is a well-preserved 13th century Byzantine church, now the Avasofya Museum. The walls of this church are decorated with frescoes, some of the finest examples of Byzantine craftmanship. The higher part of the city, the old quarter, inside the still extant fortifications with its timber houses, should be visited.

Even though Linköping has developed into an industrial center and is Sweden's fifth-largest city, it maintains a small-town atmosphere. Old Linköping is the restored town center with preserved buildings from the 18th and 19th centuries. The tower of the impressive Linköping Cathedral, which took nearly 300 years to complete, can be seen from a distance of more than 10 kilometers.