Pluto's Cave

Mount Shasta (Úytaahkoo, Karuk) or the 'White Mountain' in English, a

Mossbrae Falls is a waterfall flowing into the Sacramento River, in

Hedge Creek Falls is a waterfall on hedge creek, in the Shasta Cascade

Castle Lake is a glacial lake (cirque lake or tarn) located in

Castle Crags is a dramatic and well-known feature in Northern

Lava Beds National Monument, located in Siskiyou and Modoc Counties,

Burney Falls is a waterfall on Burney Creek, in McArthur-Burney Falls

Potem Falls is a 70 ft waterfall on the Pit River arm of Shasta Lake

The Salt Cathedral of Zipaquirá (Spanish: Catedral de Sal de

Karaca Cave (Turkish: Karaca Mağarası) is a network of caves l

Batu Caves is a limestone hill, which has a series of caves and cave

Saeva dupka (Bulgarian: Съева дупка) is a cave in Northern Bulgaria

The Wieliczka Salt Mine, located in the town of Wieliczka in southern