Children’s historical conceptions are often based only on their school textbooks and grandpa’s stories of wrestling a WWII biplane to the ground after eating a single can of spinach. Broaden historical horizons with today’s Groupon to the National Constitution Center. Members, active military personnel, and children younger than age 3 are admitted free. Choose between the following options:

• For $12, you get a museum outing for two adults (up to a $24 value).
• For $20, you get a museum outing for a family of four (up to a $40 total value), which includes:
• Two adult admissions (up to a $24 value)
• Two child admissions (up to a $16 value)
  
  

Steps from Independence Hall and the Liberty Bell, the National Constitution Center introduces audiences to the history and themes of the Constitution through more than 100 interactive presentations and displays. The center’s core exhibition, The Story of We, the People, paves a multimedia narrative of our nation’s history, and Spies, Traitors and Saboteurs—on display until January 8—sheds light on foreign and domestic espionage, civil liberties, and classified fake-mustache technologies (additional $3/visitor). Visitors can take in up to six daily showings of Fighting for Democracy, a multimedia performance that recounts diverse World War II–era perspectives on freedom and equality. Explore the art-packed citadel in pairs or bring along the bulk of the family for an educational visit infinitely more interesting than ingesting a history book.

Though the National Constitution Center offers discounted prices for students and senior citizens, this Groupon still offers the best deal available.