Hot Springs, Arkansas has been drawing visitors for centuries, and it all starts with the water. The city sits atop a natural thermal spring system that produces nearly a million gallons of 143-degree water each day. These springs gave rise to Bathhouse Row, a stretch of eight historic bathhouses within Hot Springs National Park. Some, like the Fordyce Bathhouse, now serve as museums, while others still offer traditional thermal soaks.

A relatively recent addition to Costa Rica's list of national parks is Tenorio Volcano National Park, home to its namesake Tenorio Volcano as well as its taller sister, Miravalles Volcano, also the highest mountain in the Guanacaste Mountains.

Little Rock, capital and largest city of Arkansas, a port of entry on the Arkansas River opposite North Little Rock, in the central part of the state. Among the attractions in Little Rock are the State Capitol (1911); the Governor's Mansion; Quapaw Quarter, a district of restored buildings that includes the Old State House; the Arkansas Territorial Restoration, a group of restored homes dating from the early 19th century; and MacArthur Park, containing the Arkansas Arts Center, and much more!

Crater Lake National Park, Oregon, offers a breathtaking display of natural beauty centered around the deepest lake in the United States. Formed by the collapse of a volcanic caldera, Crater Lake is renowned for its stunningly clear blue waters, which are the result of rain and snowfall filling the caldera. The lake's unique color and clarity are due to its depth and the purity of its water, making it a visual marvel that attracts visitors year-round.

The biggest volcano in Europe - and still very active. Drive up to the 6,000 foot level, travel along roads that run over layers of hardened lava, created in ancient and modern times. Enjoy the magnificent view of the Tyrrhenian and lonian coasts.