Autumn is associated with the harvest season: daylight gets shorter, nights get cooler. The season also brings with it vibrant and dramatic displays of color, along with delicious, seasonable treats.<br><br> In the upper Castle Garden, autumn leaves are whirled through the air by a leaf blower, Oct. 31, 2019, in Stuttgart, Germany.

Leaves change color at a vineyard near the village of Katsiveli, Russia, Oct. 29, 2019.

Autumn leaves fall on a sunny day at the wine region of Villany, Hungary, Oct. 27, 2019.

Autumn leaves are reflected in the Wissahickon Creek in Philadelphia, Oct. 25, 2019.

A woman makes her way through the morning fog at a park in Minsk, Belarus, Oct. 25, 2019.

Hundreds of pumpkins lie on a field near Frankfurt, Germany, after sunset on Wednesday, Oct. 16, 2019.

An Egyptian fruit bat eats a pumpkin during Halloween celebrations at the zoo in Kiev, Ukraine, Oct. 29, 2019.

Illuminated Jack O'Lanterns are seen at the Great Jack O'Lantern Blaze held at Croton-on-Hudson, New York, Oct. 29, 2019.

Pumpkin carver Rick Reiski carves a work of art from a pumpkin on Oct. 13, 2019, in Klaistow, Brandenburg, Germany.

A man walks past autumnal trees during a sunny day in Vilnius, Lithuania, Oct. 16, 2019.

Red maple leaves color the autumn countryside in Cantin village, northern France, Oct. 13, 2019.

A wild black cormorant at Botanical Garden Rombergpark in Dortmund, Germany, Oct. 16, 2019.

A fisherman rows his boat along autumnal trees during a sunny day at the Sylvenstein Barrier Lake, Germany, Oct. 15, 2019.

People walk on the bridge over the river Garry, in Pitlochry, Scotland, Oct. 26, 2019.

Carved pumpkins are seen during a pumpkin festival in Highwood, Ill., Oct. 12, 2019.

Tourists pick apples at an orchard during an apple harvest festival in Fangjiatun Township in northeast China, Oct. 13, 2019.

A child plays with yellow leaves at Ostafyevo Park in Moscow, Oct. 5, 2019.

People ride on trailers behind a tractor through corn fields at Snyder's Farm in Somerset, N.J., Oct. 5, 2019.

Freshly harvested pumpkins are offered for sale at a field near the small Bavarian village of Puchheim, Germany, Oct. 2, 2019.

Autumn colors are seen on foliage in Minsk, Belarus, Oct. 2, 2019.

Gala apples are sorted in the sorting room of the Sady Karachayevo-Cherkessii, Gardens of Karachay-Cherkessia, enterprise in Adyge-Khabl, Russia, Oct. 1, 2019.

Workers collect grapes in the vineyards of the chateau Mouton Rothschild near Pauillac, in the Bordeaux region of France, Sept. 30, 2019.

Pumpkins lay on a field near Mutterstadt, Germany, Sept, 24, 2019.

A man walks his dog next to straw bales as the sun rises on the outskirts of Frankfurt, Germany, Aug. 26, 2019.

A worker harvests wine grape varieties in a vineyard of the Massandra Winery in Crimea, August 20, 2019.

Stan Riebold drives a team of six Percheron mules as his grandson Wyatt Erickson, 5, holds on for the ride, near Colfax, Wash, Sept. 2, 2019.

A biplane made of pumpkins is shown on a farm in Mechernich, Germany, Sept. 10, 2019.

A picture taken with a drone shows people picking fruits during the National Fruit Picking Days, in Kerk Avezaath, the Netherlands, Sept. 6, 2019.

A harvest full moon, which occurs just before the Autumn Equinox rises in Runcor, Cheshire, England, Sept. 13, 2019.

The harvest season of crops such as corn and peppers is underway in Qianjiang district of Chongqing, China, August 15, 2019.

Muslim shoppers take pictures of lantern decorations for a mid-autumn festival at a shopping mall in Kuala Lumpur, Malaysia, Sept. 14, 2019.