Complex sentence: The parking lot is painted with the field location and configuration of the old ballpark, where the outfield wall--along with the monument marking where Hank Aaron's 755th home run went over it--was reinsalled and still stands today.
Split into simpler sentences: The parking lot is painted with the field location and configuration of the old ballpark. The section of the outfield wall with the monument marking where Hank Aaron's 755th home run went over it was reinsalled in its original location, and still stands today.