Who doesn't love random desert art?
On a recent trip to California we took a pit stop at the Seven Magic Mountains. It is located to the east of I-15 and you can see it from the freeway. Basically it is 7 rocks towers painted in neon/sherbert colors. All kinds of awesome!
To get there from Las Vegas/Henderson: Take Las Vegas Blvd at St. Rose Pkwy and go south about 12 miles. It will be on your left. There is a small gravel parking lot and a short path to walk out to the rocks.