Hot Springs National Park, Arkansas
Below: The park is right in the middle of town. In the background is the old Army-Navy hospital which provided therapeutic baths for patients using water from the hot springs.
Below: Hot springs coming out of the rocks.
Below: Locals collecting water from the hot spring pools for use at home. The 4,000-year-old, mineral-enriched water is thought to have theraputic and healing properties.
Below: For centuries, people have bathed in the hot spring waters. Formal bathing and showering spas were developed and the one below was built around 1915 and is preserved today by the National Park Service.