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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. Deception Pass Bridge from North Beach, Whidbey Island, Washington
  8. Costa Rica, Monteverde, Monteverde Cloud Forest Reserve
  9. Costa Rica, Tabacon Hot Springs, tropical vegetation along natural hot springs
  10. Trees below Mount Assiniboine with Sunburst Lake, British Columbia, Canada
  11. Parasaurolophus Dinosaur Fossil
  12. Coqui frog on leaf, El Yunque Forest, Puerto Rico
  13. Green Turtle, hatchlings head to sea, Ascension Island, South Atlantic Ocean
  14. Summit Of The Monch, 4,107 Metres (13,474 Feet) From West, Bernese Alps, Switzerland
  15. Saguaro cacti, Saguaro National Park, Arizona
  16. Black-footed Penguin descending stairs, Boulders Beach, South Africa
  17. Falls Creek Falls, Gifford Pinchot National Forest, Washington
  18. Coniferous forest in fog, Deception Pass State Park, Washington
  19. Tundra and Mount Assiniboine, British Columbia, Canada
  20. Spain, Granada, Alhambra, Legendary Moorish Palace Interior Details
  21. Upper Body Of Notoungulata Fossil
  22. Green Sea Turtle returning to sea after nesting, Ascension Island, Atlantic Ocean
  23. Joshua Tree In Sunlight
  24. Saguaro cactus, Saguaro National Park, Arizona
  25. Greece, Meteora, Roussanou Monastery
  26. Deception Pass Bridge in fog, Deception Pass State Park, Washington
  27. White Cliffs Of Dover, Seven Sisters, Beachy Head, East Sussex
  28. Norway, Lofoten Islands, Moskenesoya Island, Reine, above Arctic Circle
  29. Venezuela, Angel Falls, Canaima National Park
  30. Black-footed Penguin group between large boulders, Boulders Beach, South Africa
  31. Toco Toucan
  32. Southern Double-collared Sunbird male on Pincushion protea flower, South Africa
  33. Sculpture And Pyramid Of Kukulcan
  34. Alaska Range, Interior, Susitna Glacier, Mt. Deborah, complex medial moraines, surging
  35. Ordovician Isotelus Gigas Trilobite Fossil
  36. Sundew showing sticky hairs, Stirling Range National Park, Western Australia
  37. Bentonite clay deposits, Painted Hills, John Day National Monument, Oregon
  38. Bunchberry, Dogwood, Tatshenshini River, British Columbia, Canada
  39. Wind turbines, Schell Creek Range, Nevada
  40. Palouse Falls, Palouse River, Washington
  41. Utah, Bryce Canyon National Park, detail of Hoodoos, eroded lake sediments
  42. Coast at sunset, Deception Pass State Park, Washington
  43. Rainbow at Victoria Falls, Zimbabwe
  44. Green Turtle nesting female on beach, Ascension Island, South Atlantic Ocean
  45. Ruins Of Sanctuary Of Athena At Delphi
  46. Snow Goose flapping wings, Skagit River, Washington
  47. Bigleaf Maple Seedling grows on mossy trunk, Cascade Mountains
  48. Mexico, Chichen Itza, Kukulcan