Directions:

Kazan, university where Klaus discovered ruthenium.
Buterlov Chemical Institute, laboratory where Klaus discovered ruthenium, presently used holds chemical museum, Kazan State University, Ul. Kremlevskaya. - N55 47.40 E49 07.31.
Butlerov Statue - N55 47.60 E49 07.31.
Lobachevsky Statue - N55 47.52 E49 07.23.
Observatory, used by Lobachevsky - N55 47.46 E49 07.15
RR Station (Voksal), Privokzalnaya Pl. - N55 47.30 E49 06.00
The main university building is 100 meters north of Buterlov Chemical Institute (not shown on map but illustrated in photos), Kremlevskaya 18 - N55 47.45 E49 07.31