We took the night time tour. The Lincoln Memorial, Jefferson Memorial, and the stop at the Pentagon were the most visually stunning for an evening tour. At the Pentagon, I did not realize there was a 9-11 memorial which is at it's best at night because it lights up. It also requires a lot of explanation to understand all that went into it's design and the driver did an excellent job of it. The Vietnam Memorial at night is pretty much just in the dark and very difficult to find and see. We required a wheel chair for my mother due to the extensive walking and ELD provided that for us. He also dropped us back at our hotel, which we greatly appreciated. This is a small company and uses a minivan, so a maximum of 5 in the tour. He used a microphone system inside the van, so you did not miss any of the narrative. The tour guide/owner is a former school teacher in History and a lifelong local resident, so he could answer all of our questions. A good choice for us!