Czech forum members re Heydrich

Do we have any of the above ? I ask since I plan to visit Prague later this year and would like a small amount of help to do some pre-visit research.

I would like to visit the site of the attempt made by Czech resistors on the life of well known Nazi Heydrich. I would also like to visit the church where the resistors held out against the Nazi occupiers of their country before finally being ocercome.
Is it known if these two places are sunstantially unchanged from the date of the attempted assassination , and are they relatively central to Prague ?
BG