Juneau's majestic sprawl and abundance of nature set it apart from most capital cities in America. Tourists arrive via air or water, many coming in on cruise ships.

Hol Chan Marine Reserve lies off the southern coast of Ambergris Caye, near San Pedro in northern Belize. The protected area covers coral reefs, seagrass beds, mangroves, and channels that form part of the Belize Barrier Reef. Its name comes from the Maya words for “little channel,” referring to a natural break in the reef that allows water to move between the Caribbean Sea and the shallow lagoon.

Hidden in the northern region of Costa Rica, the Celeste River (Río Celeste) winds through Tenorio Volcano National Park with a color so vivid it seems unreal. The river’s striking turquoise hue is caused by a natural chemical reaction between two mineral-rich streams, Quebrada Agria and Río Buena Vista, which merge at a point known as "El Teñidero." This one-of-a-kind phenomenon creates the illusion that the water has been dyed blue, even though no pigments are present.

Uluru-Kata Tjuta National Park, national park in the Northern Territory, Australia, in the arid center of the continent, southwest of Alice Springs. The area was established as Ayers Rock/Mount Olga National Park in 1958 and renamed Uluru National Park in 1977.

The River Ganges, flowing through India and Bangladesh, supports millions of people living in the river basin. In Hinduism, the river is considered the most sacred, and as a result it is in important element of many Hindu rituals and festivals.