An inflatable sculpture entitled "Sea Monsters HERE" extends from a rusting warehouse called Building 61 at the Navy Yard in Philadelphia, Tuesday, Oct. 9, 2018. The installation was created by UK-based artists Filthy Luker and Pedro Estrellas. The former military base is free and open to the public. (AP Photo/Matt Rourke)

An inflatable sculpture entitled "Sea Monsters HERE" extends from a rusting warehouse called Building 61 at the Navy Yard in Philadelphia, Tuesday, Oct. 9, 2018. The installation was created by UK-based artists Filthy Luker and Pedro Estrellas. The former military base is free and open to the public. (AP Photo/Matt Rourke)

PHILADELPHIA (AP) — A giant sea monster has taken over a building at Philadelphia’s Navy Yard, but only temporarily.

The inflatable sculpture titled “Sea Monsters HERE” is at a rusting warehouse called Building 611. It features huge purple tentacles bursting out of windows and reaching from the rooftop. The 40-foot-long creations sway in the breeze, creating the sense of a huge living creature.

It was created by U.K.-based artists Filthy Luker and Pedro Estrellas. They were invited to install the work as part of a collaborative project between Group X, a collection of local artists and organizers, and the Navy Yard.

It’s on view until Nov. 16.

Once the nation’s first shipyard, the Navy Yard is now a waterfront business campus home to 165 companies.