Photo of the Day

December 28, 2019

Gateway Arch

The Gateway Arch cuts across the night sky in St. Louis, Missouri. The monument is an ode to westward expansion, and it features a tram that goes all the way up and down the Arch.
Photograph by JIM RICHARDSON, Nat Geo Image Collection

Go Further

Subscriber Exclusive Content

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history