Canaima National Park

Brief Description
Canaima National Park is spread over 3 million ha in south-eastern Venezuela along the border between Guyana and Brazil. Roughly 65% of the park is covered by table mountain (tepui) formations. The tepuis constitute a unique biogeological entity and are of great geological interest. The sheer cliffs and waterfalls, including the world's highest (1,000 m), form a spectacular landscape.

source: http://whc.unesco.org/en/list/701/