Just saw this interesting article on BBC News and thought it might be worth a thread in GUD since it's an idea I had never seen before.
Berlin House of One: The first church-mosque-synagogue?
credit: Getty Images, see bottom right corner
Berlin thinks it is making religious history as Muslims, Jews and Christians join hands to build a place where they can all worship. The House of One, as it is being called, will be a synagogue, a church and a mosque under one roof.