The time marked in stone and the space telling us everything is temporary...

Brazil, Ribeira Valley

Betari river.

Brazil, Ramalho Ridge

Pau de Colher.

Brazil, Ramalho Ridge

Pau de Colher System.

Slovenia, Postojna Cave

Pivka River Sink.

Slovenia, Predjama

Predjama Castle.

Brazil, Lagoa Santa

Ruiniform ground in Baú Cave area.

Brazil, São Desidério

Sucupira Doline

Brazil, Morro do Chapéu

Brejões Cave

Cuba, Pinar del Rio.

Cuba, Sumidero.

Cuba, Pinar del Rio.

Brazil, Pains

Karren and karst tower.

Brazil, Pains

Limestone massive.

Brazil, Pains

Karst lake.

Brazil, Doresópolis

São Francisco Canyon.

Slovenia, Divaca

Skocjanske Caves.

Brazil, Itacarambi (Peruaçu Valley) Terra Brava Polje.

Brazil, Itacarambi (Peruaçu Valley) Carlúcio Cave.

Brazil, Itacarambi

Peruaçu Valley.

Brazil, Itacarambi

(Peruaçu Valley) karren.

Brazil, Itacarambi

Peruaçu Valley.