The I. M. Pei building on Dorchester Bay, with a recreated Oval Office, the Kennedy family galleries and family days through the school year.
Details change often — check with the program.
John F. Kennedy Presidential Library & Museum is listed in the GOkidOZ guide to museum classes and family tours across Massachusetts. Class schedules, free hours and vacation-week programmes change term by term — check the official site above for current listings, and see what else is on during winter break.