In the shadow of the Sangre de Cristo Mountains lies the towering sand dunes of Colorado, the tallest in North America. The juxtaposition of arid sandy terrain next to snow-capped peaks is a ...

Arenal Volcano is an active volcano in Costa Rica, which is in the south part of North America. It is famous for an intense eruption period, which lasted from 1968 until 2010 - more than 40 years.