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Crater Lake. You truly know nothing of color blue until you experience it here. Photography by underdog9, via Flickr

Koyasan, via Flickr. Mount Koya is the center of Shingon Buddhism.

Blue Lagoon, Patagonia, Argentina, photo by dirkoneill.

Morocco

NASA's MESSENGER Satellite Captures Spectacular Color Mosaic of Mercury by NASA Goddard Photo and Video, via Flickr

Paris, Quais d'Anjou

Grand Canyon

forest sunbeams by Bill Hinton Photography, via Flickr

The Azure Window, Gozo, Malta

canopy lake.

One of my favorite places in the world. Glacier Point, Yosemite National Forest.

In my head I am here. Right now. Vernazza, Cinque Terra, Italy

Claustral Canyon,Blue Mountains, Australia.Photograph : Carsten Peter

Badlands National Park Photography by Wayne Moran

kume

Gorges de l’Areuse in Switzerland • photo: sevenbrane on Flickr

Mt Seymour Provincial Park, Vancouver, BC, Canada by Kevin Mcneal on Flickr

The Grand Canyon like You've Never Seen It Before, from Space. Image by NASA

Gem Lake (near Snoqualmie, WA). Isn't it gorgeous?!

Bushkill Falls, PA

jumping off "da big rock", Waimea Bay, O'ahu, Hawai'i, photo by Gui Klaime via Flickr