Beograd, Serbia

National museum in Belgrade and Celtic settlement in Taurunum area and Ritopek (not sure if the latter is visible).

National museum in Belgrade;
http://www.narodnimuzej.rs

contact kontakt@narodnimuzej.rs
other associated institution Arheoloski Institut (RS)
other associated contact http://www.ai.ac.rs/eng.php; Knez Mihailova 35/IV, 11000 Belgrade (+381) 11-2637191