Brussels, the vibrant capital of Belgium, offers a perfect blend of medieval charm and modern sophistication. At its heart lies the iconic Grand Place, a UNESCO World Heritage Site known for its stunning Gothic and Baroque guildhalls.

Sharing a common lagoon with Raiatean and accessible only by boat, Taha'a produces about 80% of all vanilla in French Polynesia. Taha'a is the only island in the Society Islands that can be completely circled by boat inside the protected lagoon.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

Travelers on the Arabian Sea often find themselves in Muscat, on the Gulf of Oman. This port capital is situated between ocean and mountains, and boasts lovely beaches, great diving sites (watch for turtles!), 16th-century forts, and the impressive Sultan Qaboos Grand Mosque, which can hold 20,000 people.

The Amazon River, winding through the heart of South America, is a marvel of nature that offers unparalleled adventure in one of the most biodiverse regions on Earth.