The Cross of St. Peter Traditional Geocache

First off this cache is in a cemtery and only accessable during daylight hours only.

While here exploring the area SuzyJazz and I spotted this really cool structure.  While exploring it we noticed that we were able to place a cache here.

When Suzy asked what we would call this cache I noticed the symbol of St. Peter right if front of me. 

There is something wrong with the symbol though, can you spot it?