Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

El Salvador, small and densely populated, is a republic in northeastern Central America. San Salvador is the capital and largest city. El Salvador consists of a central plateau with river valleys and is situated between two volcanic mountain ranges that run east to west. High, rugged mountains are found in the extreme northwest.

Islamic and French influences blend together in charming Casablanca, Morocco’s iconic coastal city. Frequently used as a port for Spanish and Mediterranean cruises, Casablanca lies halfway between Marrakesh and Fes and is the perfect entryway for exploring the rest of Morocco.

Timbered homes and winemaking are some of the defining characteristics of Bernkastel-Kues.

South America, the fourth largest of the earth's seven continents (after Asia, Africa, and North America), occupying about 17,819,100 sq km (about 6,880,000 sq mi), or about 12 percent of the earth's land surface.