Rock of Gibraltar

The Rock of Gibraltar (sometimes by its original Latin name, Calpe, It is 426 m (1,398 ft) high. The Rock is Crown property of the United Kingdom, and borders Spain. Most of the Rock's upper area is covered by a nature reserve, which is home to around 250 Barbary macaques. These macaques, as well as a labyrinthine network of tunnels, attract a large number of tourists each year.

• http://en.wikipedia.org/wiki/Rock of Gibraltar
• Hillman 1000 Wonders