Curral Velho Once a bustling fishing village and trading post, today these Cape Verde ruins provide a home only for seabirds and turtles. Pedra de Lume An incredibly salty lake inside the crater of an extinct volcano. Ruins of Fabrica de Chave The old ceramics factory on Boa Vista shows the power drifting sand has to destroy buildings. Viana Desert Rolling sand dunes of the Sahara... in the middle of the Atlantic Ocean.