Natural History Museum (DC)

Not a playground exactly. But it was a cold morning, and it seemed like a good time to try something different with the four-year-old. He liked the life-sized animal exhibits but was uninspired by the Great Hope Diamond. I think his favorite part may have been cake in the museum cafeteria, which, together with a can of water and a large coffee, rang in at around $16. Gotta love DC.

Climbing on Australopithecus or similar

First Metro ride (that he remembers)

Climbing in some kind of rock formation

Sleepy baby on the trade ride home