Nyungwe Forest National Park, in southwestern Rwanda, is one of Africa’s oldest rainforests and a sanctuary of biodiversity. Spanning more than 1,000 square kilometers, the park shelters a wealth of wildlife, including over 300 bird species, 1,000 plant species, and an impressive 13 primate species.

Mammoth Lakes, tucked into California’s Sierra Nevada mountains, is a year-round destination that combines alpine scenery with outdoor adventure. Known for its crisp mountain air and dramatic landscapes, the town sits near the eastern entrance to Yosemite National Park, making it an ideal base for exploring the region.

Nestled in the heart of Peru's Amazon rainforest, Puerto Maldonado serves as a gateway to one of the world's most biodiverse regions. This vibrant city, often referred to as the gateway to the Peruvian Amazon, offers a unique opportunity to explore lush rainforests, encounter exotic wildlife, and experience the rich culture of the Amazonian tribes. The nearby Tambopata National Reserve and Manu National Park are prime destinations for eco-tourists and adventurers alike.

Cairns is the majestic entrance to Australia's Great Barrier Reef. This warm, tropical destination is located in Far North Queensland. Must-see attractions in Cairns include the Tjapukai Aboriginal Cultural Park, which educates tourists about indigenous peoples, and restaurant and bar-dotted Cairns Esplanade, which has a lagoon for swimming.

Long regarded as one of the freest-thinking college towns in the U.S., Ann Arbor is home to the University of Michigan, the Gerald R. Ford Presidential Library and Domino's Pizza. While you're in Ann Arbor, be certain to see the city's many fascinating historic buildings; the Kelsey Museum of Ancient and Medieval Archaeology; and Kerrytown (a diversity of specialty shops and eateries in restored 19th-century buildings close to the Farmers Market).