Autumn is the harvest season: Days get shorter and nights cooler. Autumn foliage also offers vibrant and dramatic displays of color. <br><br> A person walks his dogs in a forest in Cuxhaven, Germany, Nov. 7, 2018.
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A cleaner sweeps fallen leaves on a late autumn day in Seoul, Nov. 7, 2018.
A forest in North Rhine-Westphalia, Bielefeld, Germany, Nov. 6, 2018.
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Autumn scenery of Aletai in northwest China, Nov. 5, 2018.
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A day after the mid-term election, the dome of the U.S. Capitol is seen through autumn leaves in Washington, Nov. 7, 2018.
A woman passes by an oak tree displaying fall colors on the grounds of the National World War I Museum, Oct. 29, 2018, in Kansas City, Mo.
Trees lose their leaves as the Autumn season wears its colors on a street of Washington, D.C., Nov. 2, 2018.
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Colorful leaves cover the ground as a person walks through Washington Square in Dubuque, Iowa, Nov. 5, 2018.
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An aerial photo shows the autumn scenery in Sanshigang Town of Hefei, China, Nov. 3, 2018.
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An aerial view in Hanover, northern Germany, Nov. 6, 2018.
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Autumn scenery of the populus euphratica forest in Ejin Banner, north China's Inner Mongolia Autonomous Region, Oct. 11, 2018.
A woman stands on the footbridge over the river Garry near Pitlochry, Scotland, Oct. 10, 2018.
A leaf and beechnuts are seen in a puddle on a rainy autumn day in Eichenau, Germany, Sept. 14, 2018.
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