The "mountains" in this desert art installation are actually seven neon-colored totem poles made from stacked boulders. Renowned Swiss artist Ugo Rondinone describes his work here as a symbolic and physical midway point between the natural (the desert) and the artificial (Las Vegas, and, farther down the road, Los Angeles). The seven towers, standing from 30 to 35 feet tall, have captured the imagination of art lovers who make the 20-minute drive from the Las Vegas Strip by the hundreds every day. Be warned: Though the piece is clearly marked with signage off the I-15, there are no formal trails or pathways to get up to the towers once you park. Look out for snakes.