A sea of clouds over Lake Wanaka in Central Otago. Southern Alps198A sea of clouds over Lake Wanaka in Central Otago. Southern AlpsJokulsarlon_Panorama-crop161Jokulsarlon_Panorama-cropOil tanker near Galveston. Texas209Oil tanker near Galveston. TexasGettysburg National Military Park. Gettysburg. Pennsylvania198Gettysburg National Military Park. Gettysburg. PennsylvaniaThunderstorm near Coffee Bay in the Wild Coast region of South A198Thunderstorm near Coffee Bay in the Wild Coast region of South ACliff Palace in Mesa Verde National Park. Colorado260Cliff Palace in Mesa Verde National Park. ColoradoBetsy Ross flag. Symbol of the American Revolution170Betsy Ross flag. Symbol of the American RevolutionSpring flowers in Alentejo. Portugal190Spring flowers in Alentejo. PortugalKelp at low tide. Bay of Fundy. Nova Scotia. Canada198Kelp at low tide. Bay of Fundy. Nova Scotia. CanadaNyhavn Canal in Copenhagen.Denmark209Nyhavn Canal in Copenhagen.DenmarkRiver in Kakadu National Park.Australia190River in Kakadu National Park.AustraliaEverest Base Camp at Khumbu.Nepal209Everest Base Camp at Khumbu.NepalAriel view of glacial ice on the River Thjorsa in southern Icela240Ariel view of glacial ice on the River Thjorsa in southern IcelaIwo Jima Marine Corps War Memorial300Iwo Jima Marine Corps War MemorialLake in the Ounianga Serir.northern Chad220Lake in the Ounianga Serir.northern ChadCity of Jaen in Indalusia.Spain198City of Jaen in Indalusia.SpainOia at sunset onThira. Greece220Oia at sunset onThira. GreeceCentral Park. New York City198Central Park. New York CityBaltimore skyline and the Inner Harbor. Maryland198Baltimore skyline and the Inner Harbor. MarylandAlishian National Scenic Area. Chaiyai County. Taiwan198Alishian National Scenic Area. Chaiyai County. Taiwan