Tito's Blue Train (Serbian: Plavi voz) is a luxury train, once used by Josip Broz Tito, while president of the former Socialist Federal Republic of Yugoslavia. It is now operated as a tourist attraction on the 476-kilometre (296 mi) Belgrade–Bar railway, between Belgrade, capital of Serbia, and Bar, a coastal town in Montenegro.
Tito loved train travel and had his own private train built in 1959 which he used extensively until his death in 1980. The train was used to entertain many famous guests when they visited Yugoslavia, from India's Jawaharlal Nehru to our own Queen Elizabeth II.
You need to be very careful because place is full of muggles!