The “World’s Largest Elkhorn Arch,” over a main road through Afton, Wyo., Oct. 10, 2015. Vladimir Nabokov wrote his disturbingly compelling classic, “Lolita” from 1948 to 1953, filling 5-by-7 cards with notes he took riding shotgun while his wife, Vera, drove from Ithaca, N.Y., to Arizona, Utah, Colorado, Wyoming and Montana. (Janie Osborne/The New York Times)