Mount Wilson Behind-the-Scenes Engineering Tour in la cañadawhensat 26 sept · 9am–2:30pmwhereMount Wilson Observatory100 mount wilson circle rd, mount wilson, ca 91023whytalks · learn · behind-the-scenes observatory tour · $125 · ages 12+ · limited to 12 guestswalletpaid · ticketticketssee moresee lessopen the event page