8 Amazing Museums Where You Can Bring a Sleeping Bag and Stay the Night

Have you ever slept beneath the bones of a T-Rex? What about next to the Declaration of Independence? It's been nearly three decades since I read From the Mixed Up Files of Mrs. Basil E. Frankweiler, but the plot—two kids run away from home and take up residence at the Met, eventually solving a mystery, natch—has stuck … » 1/10/14 9:00am 1/10/14 9:00am