Shell City is the infamous gift shop that withheld Neptune's crown and appeared in The SpongeBob SquarePants Movie.
The shop is located on an unknown beach and sells novelties, marine gifts and sundries. SpongeBob and Patrick embark on a righteous quest to Shell City so they can retrieve King Neptune's crown there in six days. Shell City is owned by the Cyclops, a feared hardhat diver who dries out sea creatures to sell as souvenirs. The gift shop held 1,007 dead sea creatures as knickknacks until SpongeBob and Patrick set off the fire sprinklers in which they were revived and proceeded to beat up the Cyclops as revenge.