I first saw Асенова крепост (Asen's Fortress) when I visited Бачковски манастир (Bachkovo Monastery) a few years ago. I'd been wanting to get up and see it ever since. A few months back, I finally did.
A shot of the fortress, perched precariously on a rocky ledge.
A couple closer shots of the church.
At the top.
A view toward Asenovgrad.
A view in the other direction.