Whats a hidden gem in Boston that I should see?

Whats a hidden gem in Boston that I should see?
Whats a hidden gem in Boston that I should see?

Check out the view from the Top of the Hub, the restaurant at the top of the Prudential Center, before it closes in April.  Some other suggested gems in the Boston area include: Mount Auburn Cemetery, Castle Island, and Cambridge Center Roof Garden.  Have fun breaking out!