Save on National Constitution Center admission

If you've waiting for a ticket deal to take the family to the National Constitution Center, Groupon has one.

Here's the deal, which runs through this evening and must be used by February 15, 2011.

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) and two child admissions (up to a $16 value).

To view the deal, click here.