A visit to the James Turrell Sky Space at the Chestnut Hill Meeting House was a highlight of a recent trip. I visited at dusk to spend 50 minutes watching the sky and accompanying light display in the domed meeting room. Turrell's lighting contrasted and complimented the darkening sky; many moods from contemplative to excitable were experienced. Bring a mat to lie on the floor; check the schedule for days and start times and to register in advance (required). I'm looking forward to seeing the dawn display next visit.