Service animals only.
You could certainly walk around the outside garden with the cat backpack. However, this time of year there isn't much to see there. Everything is dormant and pond is empty. I don't think the cats would be allowed indoors.
I don't think so
Not pet friendly
No
Sorry but none of the museum's are pet friendly and that includes the Botanic gardens
No pets are allowed in any museum in D. C. nor in any federal builing.
Doubtful. They probably have plants there that could make your cats sick if they were to escape and eat them.
I do not think so. But , it is better you call them up and ask.
Thanks! Your answer is awaiting moderation.