Mammoth Cave National Park is home to the world's longest known cave system.

Carlsbad Caverns National Park is an American national park located in the Guadalupe Mountains in southeastern New Mexico.

Hang Sơn Đoòng is a solutional cave in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam.

Fingal's Cave is a sea cave on the uninhabited island of Staffa, in the Inner Hebrides of Scotland.

Luray Caverns, also known as Luray Cave, is a large, celebrated commercial cave just west of Luray, Virginia, USA.

The Frasassi Caves are an extensive karst cave system in the municipality of Genga, Italy.

The Choranche Cave is a large and beautiful cave system located in the Vercors plateau in southeastern France.

The Well of Souls is a partly natural, partly man-made cave located inside the Foundation Stone under the Dome of the Rock shrine in Jerusalem.

The Padirac Cave is a large chasm located in the Lot department of France.

The Kungur Ice Cave is a karst cave located in the Urals, near the town Kungur in Perm Krai, Russia.