A sense of scale and dimension on unusual terrain is stunning when visiting Great Sand Dunes National Park. Photo taken by Linn Smith (United States) - Travel/Vacation

This photo was taken in Lancaster, Pa. This sleeping piggie was just too cute to not photograph. Photo taken by Dawn Carson (United States) - Animals/Pets

Editor's Note: Enjoy today's International Picture of the Day selection! Photo taken by Gieny Westra (Netherlands) - People/Family/Friends

The refraction in this droplet is one of the sharpest I have captured. Photo taken by Connie Publicover (Canada) - Artistic/Creative

Typical morning start in Oklahoma in the Summer! Photo taken by Joe Blackford (United States) - Nature

It's difficult being a winter person in a summer world. Taken at the Pasadena City Hall in California. I loved the color contrast of the ski equipment with the Southern California architecture. Photo taken by Mark Visser (United States) - Artistic/Creative

A White Ibis along the shoreline of Lake Jesup flips a crayfish prey of in its beak. The diet of White Ibis is highly variable depending on the region but in Florida this is its preferred food. Photo taken by Linn Smith (United States) - Animals/Pets

While on the island of Nantucket recently, I went down to the Brant Point Lighthouse. As the sun was setting, everything took on that beautiful 'glow', including the sea shells on the beach. Photo taken by Linda A. Casey (United States) - Artistic/Creative

Another day at the beach for "Californian Friends" after a volleyball game the sunset was stunning. Photo taken by Clarissa Cervantes (United States) - People/Family/Friends

Life is perfect when you see the beautiful sea star of the sea. I took the photo while we were on holiday at Hartenbos in SA the 30th of April 2014. The sea and the water is part of the nature and the star just put beauty to the picture Photo taken by Petro Strydom (South Africa) - Nature

this is very special to me because its a portrait of puteri indonesia & she will go to miss universe contest this year. with portra 160 its has beautiful exceptional skin tones its in her apartment in jakarta, january 2013 portra 160 will always be my choice for portraits so it relate to my portrait works Photo taken by gaillard mathieu (Indonesia) - People/Family/Friends

Dragonflies are beautiful. The story behind dragonflies is particularly inspiring. It was taken at a duck pond in Redlands, CA, in July of 2011. It relates to the theme because the dragonfly is in it's natural habitat. Photo taken by Kristy Winters (United States) - Nature

My grandson's day at the beach..at Daytona Beach with family. Photo taken by Kim Jones (United States) - People/Family/Friends

A close up of a merry-go-round at the Christmas German market in Edinburgh, Scotland. Photo taken by Janine Kain (United Kingdom) - Holidays/Events

Star Trails over the Harker Glacier taken in the Antarctic winter on the island of South Georgia. Photo taken by Samantha Crimmin (United Kingdom) - Travel/Vacation

This was shot on the Potomac River south of Woodbridge, VA. last winter. I liked the way the boat house seemed to float above the river in the fog. Photo taken by Bill Jonscher (United States) - Nature

A massive lightning strike during a thunderstorm near Moscow, Idaho July 17, 2013. I grew up in southern Arizona and have a lifelong fascination with bad weather, especially thunderstorms and lightning. Photo taken by Kai Eiselein (United States) - Nature

Spring in Florida is so spectacular! The brilliant colors of this butterfly on it's flower was just too good to miss after a long winter. Photo taken by Lynn Human (United States) - Nature

I just like this picture and would like to share it. Photo taken by Tim Hayes (United States) - Nature

Chinatown - Singapore, Kodak 400TX Photo taken by Elmogran (Singapore) - People/Family/Friends

Lake Conroe, TX, 6/22/14 Photo taken by Elizabeth Brady (United States) - People/Family/Friends

I was driving on the road in Kansas and happened to see a large flock of birds in a field. I ran out into the field and captured them (hundreds of them). Photo taken by Allison Annandale (United States) - Animals/Pets

Getting into the outdoors is always a great period for reflection - although the seclusion provided by truly entering the wilderness makes the sense of reflection just a little deeper. A recent trip to the Adirondacks provided some much needed thought as I found myself at an intersection in life. Photo taken by Will Peterson (United States) - Travel/Vacation

I photographed this oystercatcher chick at sunset on Nickerson Beach, Long Beach Island, New York. Photo taken by Morris Bennett Altman (United States) - Animals/Pets