My work travels take me to various cities, where I typically try to squeeze in a bit of culture while I'm there. But today's day-trip to Baltimore and Washington, DC, left no time for that. Alas, I snapped one great picture of the National Mall as we drove by in a cab on the wait to the airport. That's the Jefferson Memorial, honoring the 3rd US President and author of the Declaration of Independence, and behind it the Washington Monument, honoring the 1st US President (and, the world's tallest stone structure!).