The end of summer and start of autumn brings out a colorful change in scenery across the Northern Hemisphere. Here, two women ride their horses across a field near Gleidlingen in the Hanover region of Germany on Sept. 2, 2013.
Blueberry and dwarf birch leaves turned to autumn colors, resting among green bearberry leaves and white lichens in Denali National Park, Alaska.
Dew drops on a tangled spider web create a lens reflecting the American Flag.
Georgia Bulldogs quarterback Aaron Murray (11) and the rest of the team gather around Georgia Bulldogs head coach Mark Richt prior to the Georgia Bulldogs 41-30 victory over the South Carolina Gamecocks at Sanford Stadium in Athens, Ga., on Sept. 7.
A pug wears a jockey figure on the back in the Pug and Bulldog race in Wernau, Germany on Sept. 1, 2013. Around 180 pugs and bulldogs took part in the race.
Dahlias bloom at the Hoehenpark Killesberg in Stuttgart, Germany, on Aug. 31, 2013.
Three leafcutter bees (Megachile spp.), probably alfalfa leafcutter bees (Megachile rotundata), snack on a squash blossom.
A 15-meter-long dinosaur made from 2,000 pumpkins stands at Karls Erlebnis Dorf in Roevershagen, Germany on Sept. 6, 2013.
A hay stack turns gold at sunset in a country field near Lucinere, Joue sur Edre, France.
A field of sorghum ripens in the late summer sun in St. Michaels, Md.
Aspen trees (Populus tremuloides) look like autumn flames at Fishlake National Forest, Utah.
A grove of red Aspen trees in Fish Lake Basin, Fishlake National Forest, Utah reflects a rough heart shape.
Leaves on the campus at St. John's University in Collegeville show that autumn has started in Minnesota.
People participate in the Tomato Royal during the inaugural Bull Run at Virginia Motorsports Park in Petersburg, Va., on Aug. 24, 2013.
A reveler plays in tomato pulp after the annual Tomatina (tomato fight) in the Mediterranean village of Bunol, near Valencia Aug. 28, 2013.
Revelers celebrate covered by tomato pulp while participating the annual Tomatina festival on Aug. 28, 2013 in Bunol, Spain.
An estimated 20,000 people threw 130 tons of ripe tomatoes in the world's biggest tomato fight held annually in the Spanish Mediterranean town of Bunol.