Directions:

Karlsruhe was the site for Chemical Congress in 1860 and the co-discovery of protactinium by Fajans and Göhring at the University.
RR Station, Bahnhofplatz - N48 59.65 E8 24.01.
Ständehaus, site of Chemical Congress, Ständehausstraße 2 - N49 00.52 E8 24.02.
Original university building, Universitat Fridericiana, 12 Kaisserstrasse, where Lothar Meyer taught - N49 0.56 E8 24.72.
Kollegium (Old chemistry building), Chemisches Institut, now Kollegiengebäude der Ehrenhof, where Fajans performed his work on protactinium, Englerstrasse 11 - N49 00.61 E8 24.72.
Home 1, first home of Meyer in Karlsruhe, now a hotel, Bahnhofstraße 53 - N48 59.70 E08 24.01.
Home 2, second home of Meyer in Karlsruhe, now Am Tiergarten hotel and restaurant, Bahnhofstraße 17 - N49 00.01 E08 23.75.