Amazing photos

Wildlife

http://www.boredpanda.com/wildlife-photographer-of-the-year-2013-winners/

http://www.boredpanda.com/best-wildlife-photos-from-national-geographic-traveler-photo-contest-2013/

Landscapes

http://photography.nationalgeographic.com/photography/photo-of-the-day/landscapes/

http://www.dherreman.com/great-landscape-photographers/

Cities

http://www.smashingmagazine.com/2009/02/01/35-examples-of-beautiful-city-photography/

http://www.pinterest.com/yaelleveyphotos/madrid-100-best-photos/

Beaches

http://www.roughguides.com/gallery/the-worlds-best-beaches/#/0

Monuments

http://sidds123450.hubpages.com/hub/100-Most-Beautiful-Monuments-In-The-World-Part-1-5