A deep-dive video covering the Communist-Era Soviet KTM-5 Trams, which are still seen in sporadic service in Daugavpils, Latvia.
Daugavpils is the only city in the EU/Schengen area that uses Soviet/Russian-built trams. Besides Daugavpils, KTM-5s only operate in Russia, Belarus, Ukraine, and Kazakhstan, all of which are difficult (or even dangerous) for Westerners to visit. While most of the service in Daugavpils is now provided by newer equipment, the KTM-5s are sometimes used to cover a single AM rush hour round trip on Line 1.