When a tough rocks sits on top of softer rock, the softer stuff eventually erodes away, leaving, sometimes, a teepee looking formation which is technically called a hoodoo. In Cappadocia, these structures are called Fairy Chimneys or Rock Chimneys. There are literally forests of these formations, but these two, just off the road as it drops down into the city of Urgup are very dramatic, with Mt Erciyes in the far background. Well worth a stop. You can't miss it, there's a huge parking lot for tour buses and a guy giving rides on his camel.