Near the banks of the river Danube in Bratislava there is a streetcar station (tram stop for our friends from the UK) named for non other than the Chatam Sofer who is buried here.
Moshe Schreiber, better known as the Chatam Sofer was one of the greatest rabbis of his generation and served for some years in Mattersdorf (today Mattersburg, one of the Sheva Kehillot, located the Austrian province of Burgenland) and from 1806 in Bratislava, or rather Pressburg, as it was then called.
During the 2nd World War, most of the cemetery was destroyed to make way for a broad street along the danube. Our guide through Jewish Pressburg, Maroš Borsky told us that most of the graves were transferred to the newer orthodox Jewish cemetery in Žižkova 36. However, the graves of the Chatam Sofer and some others were preserved and are accessible to visitors today.
Indeed, there are prayer facilities there, underground. Care has been taken to avoid halachic problems for Kohanim who mustn’t approach graves; but given that the whole area used to be a cemetery, personally I would not recommend for Kohanim to visit this memorial.
The Kever of the Chatam Sofer 
Entrance to the underground memorial 