832-400141 - Plaque in pavement with map and zero kilometre, zero kilometre stone, fundamental point, inscription, Plaza Puerta del Sol, Madrid, Spain, Europe
1116-51317 - The Hverfjall crater, a tephra cone or tuff ring volcano in Northern Iceland. The crater is approximately 1 kilometre in diameter; Skutustadahreppur, Northeastern Region, Iceland
832-380514 - Gravel road Ruta 40 with speed limit 20 Km/h, behind Lago Cardiel and Andes, near Perito Moreno, province Santa Cruz, Patagonia, Argentina, South America
1161-1075 - A general view of the Athabasca Glacier, a six kilometre tongue of ice flowing from the Columbia Icefield. It is the best-known glacier in the Canadian Rockies and is situated in Jasper National Park, Alberta, Canada.
857-15767 - Hikers make their way up Uluru or Mt. Ayers in the Australian Outback. Located in the centre of Australia, Uluru (Ayers Rock) is the world's biggest monolith. It's 3.6 kilometres long, 2 kilometres wide and has a 9.4 kilometre circumference. Made of arkosic sandstone, Uluru changes colour in different lights, particularly at sunrise and sunse.