Shell City is a gift shop seen in The SpongeBob SquarePants Movie. It is owned by a deep sea diver who is called The Cyclops by the sea creatures. The Cyclops kills sea creatures and then makes them into nick-knacks, applies google eyes on them, and sells them at this store. SpongeBob and Patrick almost get turned into knick-knacks by him, but they eventually escape Shell City with King Neptune's crown.
It is a real-life gift shop on a beach. It is small and made out of wood. It is full of various fish tanks, dead fish, marine gifts and sundries (as the name suggests). It also contains a sunlamp where the cyclops left SpongeBob and Patrick to dry up.