Vieques Island is found in the northeastern Caribbean, roughly 8 miles east of the Puerto Rican mainland. Its beaches are commonly acknowledged as some of the Caribbean's best. The Bioluminescent Bay is especially alluring given the undeveloped nature of the island.

Located in Australia's Northern Territory, Uluru is an iconic sandstone formation and UNESCO World Heritage site. This red rock monolith, believed to be over 500 million years old, has been considered sacred by Australia's indigenous peoples for thousands of years and is one of the country's most well-known natural landmarks. This spiritual destination will astound you at sunrise and sunset, when the warm sunlight turns Uluru to deep hues of red and orange.

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.

Guayaquil, Ecuador, is a vibrant port city and a frequent starting point for cruises to the Galapagos Islands.

A must-see in this centrally located Sicilian town is the 3rd century Villa Romana del Casale.