One of the Whaling City’s longstanding attractions is getting ready to expand.

The New Bedford Whaling Museum held a ceremony on Thursday to mark the start of the public phase of its “Open Doors” expansion campaign.

The museum has already raised more than $25 million to build a new welcome and exhibition center. The project will triple the museum’s special exhibition space, as well as create more space for programming and other events.

See more at wpri.com.