Mackerel Museum

The Mackerel Museum is a mackerel-themed museum in London, England.

Season three
After Scooby-Doo, Shaggy Rogers, and Scrappy-Doo successfully protected the Maltese Mackerel from two thugs, a secret agent turned up wanting to take it to the museum in London, but Scooby had accidentally misplaced while hiding in a crate full of fish.