Caldeira de las Cañadas, Caldera in Spain
The Caldeira de las Cañadas forms a spectacular volcanic crater on Tenerife.
This massive caldera was formed by a series of eruptions 170,000 years ago.
The caldera is central to many of Tenerife's legends and history among the Guanches, the island's indigenous people.
The area is accessible for hiking and attracts thousands of tourists each year.
Mount Teide, Spain's highest peak, rises from the center of the caldera.
Source: Wikimedia