You may be able to see it without being part of a tour. I didn't take a tour, just chose specific sections to see

The Sofitel Lafayette Square is a pleasant walk to all the Smithsonian museums and galleries, and an excellent hotel too.

Best gift shop for kids of all the DC museums I visited.

Yes, they do.

i Don't know

I looked at the NGA's website. They have the largest collection of Escher outside Holland, which is probably why you are interested. I couldn't check to see if all 400 works are currently "on view," but for the ones I did check, none were currently available. You may have to make some special arrangement to view the collection. I suggest calling the museum and ask to speak with a curator who is knowledgable about the Escher collection. The general phone number is 202-737-4215. Hope this helps.

一階: ギャラリー6 Ginevra de’ Benci by Leonard da Vinci (Gallery 6)

I suggest contacting the gallery directly and have all the relevant information at hand.

No, si mal no recuerdo era hasta el 21 de enero. Sin embargo habrá otras muestras que te encantarán, y no debes reservar, sólo esperar pacientemente en una larga cola que seguramente valdrá la pena. Además tienes todas las exhibiciones permanentes que te cautivarán. Que disfrutes de tu viaje

21st January 2018. Not easy to see Vermeers in the US, so well worth a special trip to visit this exhibition!