abstract

Skyscrapers in Philadelphia, Pennslyvania, United States of America, North America

Abstract image of the view from Alnmouth Beach to the North Sea, Alnmouth, Northumberland, England, United Kingdom, Europe

Mountain Ash trees, tallest flowering plants in the world, in fog, Dandenong Ranges, Victoria, Australia, Pacific

US Flag, California, United States of America, North America

The London Eye (Millennium Wheel) at night, London, England, United Kingdom, Europe

Skyscrapers in Philadelphia, Pennsylvania, United States of America, North America

Abstract image of the view from Alnmouth Beach to the North Sea, Alnmouth, Northumberland, England, United Kingdom, Europe

Great Barrier Reef, UNESCO World Heritage Site, Queensland, Australia, Pacific

The rice terraces of Banaue, UNESCO World Heritage Site, Northern Luzon, Philippines, Southeast Asia, Asia

Bund Sightseeing Tunnel, Pudong, Shanghai, China, Asia

Detail of stairway up an oil tank, Bridgetown, Barbados, West Indies, Caribbean, Central America

Cobblestones, Prague. Czech Republic, Europe