One of the major rivers of the Iberian Peninsula, the Douro in north-central Spain and Portugal just might be the world's most beautiful wine region. Most of the river on the Spanish side isn't navigable, so river cruises generally travel roundtrip from Porto, on the coast of the Atlantic.

Decatur has some of the South's finest free museums, educational facilities and historical sites. Study a variety of animals, birds and minerals at Cook's Natural Science Museum. The South's largest centerThe earth's largest space museum is only minutes away at the U.S and Rocket Center. History comes alive at the home of Civil War General Joe Wheeler. For fun, visit Point Mallard Park, a 750 acre park featuring America's first wave pool, water slides and putt-putt golf.

Libreville, the capital of Gabon, stretches along the Atlantic coast with a mix of modern streets, colonial-era buildings, and bustling markets.

Windhoek, the capital city of Namibia, is a vibrant and cosmopolitan hub nestled in the heart of the country. With its mix of German colonial architecture and modern African charm, Windhoek offers visitors a unique blend of history and contemporary culture. The city’s skyline is dominated by the striking Christuskirche, a Lutheran church built in 1907, which stands as a symbol of Namibia's German colonial past.

A historic capital in the heart of the Balkans, Belgrade will absolutely charm you with its picturesque cafés, striking religious monuments, riveting museums, and thriving nightlife.