A TOWN in Spain has been compared a city in Brazil because of it’s huge sandy beach – and famous rockface. Calpe, in Alicante, is a beach resort on the northern part of Costa Blanca.

Discover the 20 Most Dangerous National Parks in The US in this in-depth look at extreme terrains, unpredictable wildlife, ...

But Curiosity wasn't the only one with a geological mystery. At the same time, roughly 2,300 miles away on the other side of ...