the National Capitol Orchid Society Fall Show is being held in the Bonsai Penjing Museum at the Arboretum

It's total immersion orchids. normally these displays are spread out in the cavernous auditorium of the Administration Building; this year, everything is compressed into a much smaller space. I like it. The plants are close together and close to the visitors so that upon entering you're overrun with smells and colors.  The space is linear in a sort of a gallery way, moving visitors along at a pleasant pace.