On my whirlwind trip through Okayama - Tsuyama - Himeji I took a break from the JR lines for lunch and to ride the tram in Okayama. This great two line streetcar cuts through downtown Okayama. To be truthful, I'm not too sure where it goes or what you can see along it's route. I just went there to ride it. Offically the name is Okayama Electric Tramway [岡山電気軌道] but it's shortened to Okaden [岡電] in casual speech.
The Okaden is the primary shareholder in the Wakayama Electric Railway which they saved from closure is known for their funky cars and Station Manager Tama--a cat. You can see how both rail lines mix a sense of retro and historical preservation with a new progressive look towards running their railways. Okaden has a diverse rolling stock bookended by their "Momo" train which is new and streamlined, and their restored "Kuro" train which was built in 1969. The Kuro train is the oldest train in daily service in Japan. It runs five times a day and you can find the timetable here. I rode on there common rolling stock like the two trains shown above.