Considering the Hotel an der Mathildenhoehe in Darmstadt?
A VT member wrote the following comment about visiting Darmstadt:
Saint Ludwig's Church by Nemorino
People who walk to the theater from the nearby Luisenplatz go past this building which looks like a smaller version of the Pantheon in Rome, but is actually a church that was built in 1827 by the architect Georg Moller.