Most of the modern activities are in the city about a 2km walk away. You start in the main city and walk through a narrow canyon to reach this point, there's a little cafe to the left, but nothing more. If you continue walking to the right, you'll reach an open valley that has more amenities (restaurants, bathrooms, gift shops, camel/donkey rides, tour guide services, etc).

There are actually quite a few attractions, the treasury (post photo) and the monastery are the famous attractions, but there are hundreds of similarly carved tombs about a quarter the size of the treasury, an extensive city of roman ruins, roman amphitheater, temple, caves, huge cisterns/waterworks to see, and more.