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  1. Acropolis And Parthenon, Athens
  2. Red and Green Macaw pair courting, Buraco das Araras, Pantanal, Brazil
  3. Saguaro cacti, Sabino Canyon, Saguaro National Park, Arizona
  4. Tabacon Hot Springs And Volcan Arenal
  5. Cretaceous Lambeosaurus Dinosaur Fossil
  6. Eocene Echmatemys Fossil Turtle
  7. Costa Rica, Tabacon Hot Springs, tropical vegetation along natural hot springs
  8. Coqui frog on leaf, El Yunque Forest, Puerto Rico
  9. Costa Rica, Monteverde, Monteverde Cloud Forest Reserve
  10. Black-footed Penguin descending stairs, Boulders Beach, South Africa
  11. Deception Pass Bridge from North Beach, Whidbey Island, Washington
  12. Falls Creek Falls, Gifford Pinchot National Forest, Washington
  13. Upper Body Of Notoungulata Fossil
  14. Green Turtle, hatchlings head to sea, Ascension Island, South Atlantic Ocean
  15. Norway, Lofoten Islands, Moskenesoya Island, Reine, above Arctic Circle
  16. Coast at sunset, Deception Pass State Park, Washington
  17. Trees below Mount Assiniboine with Sunburst Lake, British Columbia, Canada
  18. Parasaurolophus Dinosaur Fossil
  19. Saguaro cacti, Saguaro National Park, Arizona
  20. White Cliffs Of Dover, Seven Sisters, Beachy Head, East Sussex
  21. Summit Of The Monch, 4,107 Metres (13,474 Feet) From West, Bernese Alps, Switzerland
  22. Crescent moon and summit of Mount Assiniboine, British Columbia, Canada
  23. Green Turtle nesting female on beach, Ascension Island, South Atlantic Ocean
  24. Bentonite clay deposits, Painted Hills, John Day National Monument, Oregon
  25. Venezuela, Angel Falls, Canaima National Park
  26. Coniferous forest in fog, Deception Pass State Park, Washington
  27. Palouse Falls, Palouse River, Washington
  28. Saguaro cactus, Saguaro National Park, Arizona
  29. Mexico, Chichen Itza, Kukulcan
  30. Bigleaf Maple Seedling grows on mossy trunk, Cascade Mountains
  31. Green Sea Turtle returning to sea after nesting, Ascension Island, Atlantic Ocean
  32. Sculpture And Pyramid Of Kukulcan
  33. Sundew showing sticky hairs, Stirling Range National Park, Western Australia
  34. Toco Toucan
  35. Utah, Bryce Canyon National Park, detail of Hoodoos, eroded lake sediments
  36. Tundra and Mount Assiniboine, British Columbia, Canada
  37. Southern Double-collared Sunbird male on Pincushion protea flower, South Africa
  38. Wind turbines, Schell Creek Range, Nevada
  39. Rainbow at Victoria Falls, Zimbabwe
  40. Bunchberry, Dogwood, Tatshenshini River, British Columbia, Canada
  41. Iceland, Godafoss waterfall, north near Akureyri
  42. Galapagos Sea Lion pups playing, Espanola Island, Galapagos Islands, Ecuador
  43. Red-Eyed Tree Frog
  44. Deception Pass Bridge in fog, Deception Pass State Park, Washington
  45. Spain, Granada, Alhambra, Legendary Moorish Palace Interior Details
  46. Ruins Of Sanctuary Of Athena At Delphi
  47. Galapagos Giant Tortoise, endangered, Santa Cruz Island, Galapagos
  48. Quokka mother with joey in pouch, Rottnest Island, Perth, Western Australia, Australia