Over at Medium, Eric Meltzer writes about temporarily destroying his depth perception in Akhob, James Turrell's Ganzfeld light installation tucked away on the top floor of the massive Louis Vuitton store in Las Vegas. It's free, but you'll need a reservation.
Then I started seeing things. At first, blotches on the field of blue. Then the blotches began to move like amoeba. Wave after wave of light and dark swept over the expanse. I blinked, and a yellow-orange afterimage appeared in front of me: hundreds of spinning wheels. I opened my eyes again, and the blotches and waves continued. They got more intense with every color change, and less intense if I looked down at my feet, or over at the curator standing at the edge of the drop off.