United States

Hot Springs/United States

Quapaw Baths & Spa

Four communal thermal pools inside a restored 1922 Bathhouse Row building.

Temperatura di balneazione 38°C

Glenwood Springs/United States

Glenwood Hot Springs Resort

One of the world's largest hot-spring pools, fed by the 50°C Yampah spring in Colorado.

Temperatura di balneazione 32°C

Chena Hot Springs/United States

Chena Hot Springs Resort

A geothermal rock lake in the Alaskan interior, under the aurora from autumn to spring.

Temperatura di balneazione 40°C

Ojo Caliente/United States

Ojo Caliente Mineral Springs

A historic New Mexico spring resort with an unusual combination of four mineral waters.

Ouray/United States

Ouray Hot Springs Pool

An open-air mineral pool ringed by the San Juan Mountains, in a Colorado box canyon town at 2,400 metres.

Temperatura di balneazione 40°C

Lava Hot Springs/United States

Lava Hot Springs

State-run soaking pools on the Portneuf River in southern Idaho, fed by odourless mineral water since 1902.

Temperatura di balneazione 44°C

Thermopolis, Wyoming/United States

State Bath House, Hot Springs State Park

A free public bathhouse at the foot of one of the world's largest mineral hot springs.

Temperatura di balneazione 40°C

Berkeley Springs/United States

Berkeley Springs State Park

The oldest spa in the United States — warm mineral springs bathed in by George Washington, still running in a small public park.

Temperatura di balneazione 23°C

Saratoga Springs/United States

Roosevelt Baths & Spa

Naturally carbonated mineral baths in a 1935 New Deal bathhouse inside Saratoga Spa State Park.

Temperatura di balneazione 36°C

Umpqua National Forest/United States

Umpqua Hot Springs

Terraced travertine pools above the North Umpqua River in the Oregon Cascades.

Temperatura di balneazione 40°C