Heiliggeistkirche (Church of the Holy Spirit) - Heidelberg, Germany

Unique church, in that it used to hold simultaneous services for both Protestant and Catholics in days long gone. It is now strictly Protestant (Evangelische). Located in the main square of Heidelberg, it is a huge structure; it was first menioned as far back as 1239, although the foundation for the current structure was not laid until 1398 (please see wikipedia for more detailed info on this fascinating church: http://en.wikipedia.org/wiki/Church_o...