Some San Francisco residents may have never even set foot on Treasure Island, even though it’s actually considered a city neighborhood. This artificial island in the San Francisco Bay was built out of mud dredged up from the bay for the Golden Gate International Exposition (a World’s Fair) in 1939. Soon after, the military took over, and by 1969, Cosson Hall opened to sailors stationed on the island.

These navy barracks contained two asterisk-shaped buildings made up of six wings and a central, circular ramp.

Photojunky Drone Zone Vlog

The building was decommissioned in the 1990s, and has since fallen into disrepair.

Photojunky Drone Zone Vlog

In its abandoned state, Cosson Hall has become a playground for spray-paint artists and urban spelunkers.

Thomas Hawk/Flickr

This drone footage by Photojunky Drone Zone Vlog explores Treasure Island and takes you right into the guts of the abandoned barracks (even getting too close for some seagulls’ comfort)—and it’s truly fascinating.

Photojunky Drone Zone Vlog

Thomas Hawk/Flickr

Since Cosson Hall if off-limits, this is the best way to see its creepy remains. Of course, some claim this area is haunted—and we’re not going to argue. Do you think this abandoned San Francisco site is as cool as this one?

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