Some people love museums enough to make a lifelong commitment. @MuseumDay (Tudor Place)

Tudor Place in DC's Georgetown.

1919 Pierce-Arrow Roadster w Brewster & Co. (carriage manuf.) body @ Tudor Place

Of course, we are the Nation's Museum, and fortunate to be free all the time.

Dumbarton House is in da house for @MuseumDay.

The label tells the tale. Good tries from @mouthflowers @starwarsfanatic & the rest.

Anyone know what honor this 42.3 carat blue sapphire holds?

And if that sky wasn't blue enough for you, how's this little number @NMNH?

@NMAI

It's a beautiful day in the neighborhood, a beautiful day for a neighbor...

A piece of "aviation" history not seen @AirandSpace Family Day today. DC has a LOT going on.

Heaven & Hell Car, as seen, apparently, in @SmithsonianMag. Visiting DC's H St NE

What Pres who said "Am. is not anything if it consists of each of us. It is something only if it consists of all of us" lived her.

Kickball at the Kapitol. The suit? The umpire of course. Use your public lands to the fullest.

What creatures of the Ordovician Period are immortalized in this stone from Trenton Falls, NY?

Funky! Into transportation? Then check out Am. On the Move @AmHistoryMuseum http://sn.im/amonmv

Answer key to D.C. skyline view No. 2 (http://twitpic.com/gbwxu)