Everything everyone else said plus:
Concord/ Lexington,where our Revolutionary War began.
Worcester Art Museum,probably the finest”small” art museum in the country, also housing a magnificent collection of arms and armor.
New Bedford Whaling Museum.
Chatham,Ma Coast Guard Station.
Cape Cod National Seashore,swim with the Great White sharks (if you’re insane).
While in Worcester you can dine in some incredible restaurants that can match any sort of food you favor. Any country you can think of is represented. India, China,Tibet,Africa,Russian,French,Irish,Polish,Italian,etc. Plus we have McDonalds!
What more could you want?