There is a Pirate Mansion museum (La Mansion Pirata) in Mazatlán. This is a new attraction that opened in 2021 in Mazatlán.
2023-01-30 UPDATE: The pirate mansion is temporarily closed. Supposedly, they are looking for a new location.
They have numerous pirate-themed displays on multiple levels of the building and a pirate-themed gift shop.
They also offer tours in english and spanish. If you want a tour in english we recommend that you contact them prior to going to ensure they have an english speaking guide available.
Address is: Calle Gral. Angel Flores 1114, Centro, 82000, Mazatlan, Sin., Mexico
Phone: +52 669 263 2014