Timanfaya National Park, Lanzarote

A landscape of volcanoes and lava fields created by huge eruptions between 1730 and 1736, with craters in shades of red, orange and black. Heat from just below the surface is still strong enough that guides pour water into holes to make geysers of steam, and the restaurant grills food over a volcanic vent.

Cars can't drive freely in the park; a coach tour on the Route of the Volcanoes is included in the entry. The camel rides at the edge of the park are popular. César Manrique's buildings around the island, such as the Jameos del Agua, are well worth seeing.