Photo of the Day

Artificial reef encrusted in tube sponges
March 18, 2011

Flower Garden Banks, Gulf of Mexico

This Month in Photo of the Day: National Geographic Magazine Features

In the Flower Garden Banks National Marine Sanctuary in the Gulf of Mexico, steel pillars supporting a gas platform make a vertical reef encrusted with tube sponges.


See more photographs from the February 2010 feature story "Relics to Reefs."

Photograph by David Doubilet, National Geographic

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