September 2023, day by day.

Allen's hummingbird, Santa Cruz, California (© mallardg500/Getty Images)

2023-09-01

Aerial view of Manhattan, New York City (© Wojtek Zagorski/Getty Images)

2023-09-02

Construction workers on scaffolding (© Bits and Splits/Shutterstock)

2023-09-04

Marshes of Bourges, France (© Tuul & Bruno Morandi/Getty Images)

2023-09-04

Camels in the desert, United Arab Emirates (© Amazing Aerial Premium/Shutterstock)

2023-09-04

Mount Segla, Senja Island, Troms og Finnmark, Norway (© imageBROKER/Moritz Wolf/Getty Images)

2023-09-04

Old Venetian harbour, Rethymno, Crete Island, Greece (© Gatsi/Getty Images)

2023-09-05

Scenic view at Toronto city waterfront skyline at sunset (© Elena Elisseeva/Shutterstock)

2023-09-07

The Circus townhouses in Bath, Somerset, England (© Gavin Hellier/Getty Images)

2023-09-07

Wat Chaiwatthanaram temple, Ayutthaya Historical Park, Thailand (© Weerasak Saeku/Getty Images)

2023-09-08

Walrus pair at sea in Svalbard, Norway (© Mark Smith/Getty Images)

2023-09-09

Sunrise at a vineyard in Bordeaux, France (© Esperanza33/Getty Images)

2023-09-10

French River, Ontario, Canada (© Tim Fitzharris/Minden)

2023-09-11

Brooklyn Bridge with the 'Tribute in Light' installation for 9/11, New York (© ANDREY DENISYUK/Getty Images)

2023-09-11

North Sea at sunset, Norddorf, Amrum Island, Germany (© Frederick Doerschem/Getty Images)

2023-09-11

Temples on Hemakuta Hill, Hampi, Karnataka, India (© Images of india/Alamy)

2023-09-12

Przewalski's horses, Hustai National Park, Mongolia (© Ondrej Prosicky/Shutterstock)

2023-09-13

Inside of a temple at sunrise in India Udaipur (© Ronny Werner/Alamy Stock Photo)

2023-09-14

Sunset in Glenariff Forest Park, County Antrim, Ireland (© Peter Zelei/Getty Images)

2023-09-15

Mission church ruins at Quarai, Salinas Pueblo Missions National Monument, New Mexico (© Thomas Roche/Getty Images)

2023-09-15

Splügen Pass, Graubunden, Switzerland (© Roberto Moiola/Getty Images)

2023-09-15

Cuban tody, Alejandro de Humboldt National Park, Cuba (© Bruno D'Amicis/Minden Pictures)

2023-09-16

A beer tent at Oktoberfest in Theresienwiese, Munich, Germany (© Peter Kneffel/picture alliance via Getty Images)

2023-09-16

Milky Way over Southwest Alentejo and Vicentine Coast Natural Park, Portugal (© Daniel Garrido/Getty Images)

2023-09-17

Detail of an old Ganesh sculpture, Karnataka (© Bluberries/Getty Images)

2023-09-17

Hadrian's Wall, Northumberland National Park, England (© daverhead/Getty Images)

2023-09-19

Roman-inspired aqueduct, Arkadia Park, Poland (© PATSTOCK/Getty Images)

2023-09-19

Inside the Nobel Peace Centre, Oslo, Norway (© Ilyas Ayub/Alamy)

2023-09-20

Southern white rhinoceros males, Shamwari Private Game Reserve, South Africa (© David Silverman/Getty Images)

2023-09-21

Marsala salt pans, Italy (© javarman3/Getty Images)

2023-09-22

Cottonwood trees and red sandstone in Coyote Gulch, Glen Canyon National Recreation Area, Utah (© Stephen Matera/Tandem Stills + Motion)

2023-09-22

The light installation 'Global Rainbow' by artist Yvette Mattern (© David Cooper/Contributor/Getty Images)

2023-09-23

The Fraser River near Mount Robson, British Columbia, Canada (© phototropic/Getty Images)

2023-09-23

Sea otter in Bartlett Cove, Glacier Bay National Park and Preserve, Alaska (© Andrew Peacock/Tandem Stills + Motion)

2023-09-24

Venice Beach Skatepark at sunset, Los Angeles, California (© EXTREME-PHOTOGRAPHER/Getty Images)

2023-09-25

The Via Krupp footpath on Capri island, Italy (© Mikolaj Niemczewski/Shutterstock)

2023-09-26

Container ship near a commercial port in Thailand (© Suriyapong Thongsawang/Getty Images)

2023-09-27

The Sangameswara Temple is part of the the former capital Kisuvolal of the Chalukya Dynasty (© Frank Bienewald/Alamy Stock Photo)

2023-09-28

Jiaxiu Tower under a full moon, Guiyang, Guizhou province, China (© Wang Yukun/Getty Images)

2023-09-29

Fall colours in Shenandoah National Park, Virginia (© Michael Ver Sprill/Getty Images)

2023-09-29

Lake Bled from Osojnica viewpoint at sunrise, Slovenia (© Rasica/Getty Images)

2023-09-30