Planning on a trip to Washington DC and will be hitting some of the Smithsonian Museums (Flight, Space, and Natural History for sure), and I really want to take only one lens so I don't have to mess with carrying a lot of gear. I usually carry around my 28-300, but I also have a 24-85. Nikon D750, so I can crop if necessary, but do I need the extra reach?
24-85 on a FF camera will do well.
28mm might be a bit too long inside.