We went back to Rockville...

Joey told Claire all about the Metro from his trip last year. Claire gets ready to compare it to the Tube in London.

They say "Watch your step" here - not "Mind the gap".

Ready for an adventure.

Joey does his best to catch a pigeon...he didn't.

Claire says that if her dog was here, he'd eat that pigeon. If he could catch it first.

Joey and Claire get ready to conquer the Air and Space Museum.

Claire says that the Moon Rock doesn't look anything like bleu cheese.

Joey and Claire check out the living quarters on a space station. Claire turned to me and said, "Daddy, I'm thirsty."

Claire checks out how the U.S. used the U2 plane to take pictures of the Soviet Union back in the early 1960s.

Not that U2.

Now with a few clicks on the internet, you can count the cars in front of the Air and Space Museum.

Thermal imaging shows the kid's hot spots. I always thought Joey was a hot-head...

With the Air and Space Museum under their belts, it's time for more adventures.

Joey plays air guitar on the steps of the National Gallery of Art.

In the Museum of Natural of History, the kids ponder if these kids were allowed to watch SpongeBob after they finished grinding the wheat-meal.

Motyl.

Claire checks out the Hope Diamond and says that it would look good on her princess doll and can we get one?

Claire plays hard and sleeps hard.