You'll know why picturesque Grenada is known as the "spice island" when you notice the scent of nutmeg, vanilla and cocoa in the air. Grenada's waterfalls, lush rain forests, volcanic crater lake, tiny villages, cocoa, nutmeg and banana plantations, rum distilleries, scenic hiking trips, pristine coral reefs, and hidden-away unspoiled beaches all make Grenada one of the most popular ecotourism destinations for those who like to discover off-the-beaten-track natural beauty and charm.

On coastal Iceland, the globe's northernmost capital, Reykjavík, invites visitors to discover its unique charms. Iceland is rife with natural wonders: geysers, geothermic spas, waterfalls and the spectacular Northern Lights. Reykjavik, dating back to 870 AD, offers world-class museums, restaurants, shopping and nightlife.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.

Puerto Madryn is a seaside city on the eastern coast of Argentina. Facing Golfo Nuevo and the South Atlantic Ocean, this coastal destination is popular for its beaches, marine life, nature preserves, and Patagonian museums.

Vientiane, the serene capital of Laos, offers a charming blend of historical significance and cultural richness. Nestled along the Mekong River, this laid-back city is renowned for its picturesque temples and colonial architecture. The That Luang stupa, Vientiane’s most revered landmark, is an impressive golden monument that stands as a symbol of Lao sovereignty and Buddhism.