[Sobieski at Kahlenberg Mtn.]

Here's a photo with a different view The records for when the construction began are incomplete but it is estimated to have been around 1100. There are documents saying that a feudal baron/lord Oppizone della Pietra assumed the della Pietra for a family name due to the imposing structure around 1252.

[OldWarBaby]

That trail that leads and spirals around the back of the spire looks to be a real buttpincher. Not where one jogs off to get a fresh six pack.