As a city located in a Baltic Sea archipelago, it's not surprising that Stockholm has 50 bridges and sightseeing boats moving people between its 14 islands. This contemporary and welcoming capital of Sweden is nonetheless easily navigable by foot. Every district here has a distinct flavor, from the sophisticated Östermalm to the bustling downtown energy of Norrmalm to the delightful Old Town.

Silistra, a charming city located on the southern bank of the lower Danube River in Bulgaria, is a hidden gem that seamlessly blends ancient history with natural beauty.

The city of Oporto is situated on the right bank of the River Douro, being the second largest city of the country. Oporto is the regional capital of the northern area.

Tan Chau, located in the Mekong Delta region of Vietnam, is most well-known for its exclusive silk production, using local materials such as dyes made from the mac nua (Diospyros mollis) fruit.

Turks and Caicos Islands are located southeast of the Bahamas. The mean annual temperature is 85° F. Despite frequent hurricanes, the rainfall averages only 28 inches annually.