In 19th-century Pera (Beyoğlu), a traditional tram trundled along the Grande Rue de Pera (Istiklal Caddesi) for 1.64 km (1 mile) connecting Taksim Square with Galatasaray and Tünel Square (map).
The tram was taken out of service in 1961, replaced by buses.
After Istiklal Caddesi became a pedestrian zone, the tram was restored and revived in 1990.
Although it's as much a curiosity as a means of transport, you'll find it useful if your feet are tired while walking Beyoglu's main shopping and dining avenue. You can use your transit pass to ride (here's more on fares).