Zenica is Bosnia & Herzegovina's fourth-largest city, an industrial hub sitting in a broad valley along the Bosna River, about 70 km north of Sarajevo. It's not a typical tourist destination — the city's identity was shaped by its massive steelworks, which defined much of the 20th century here — but it has a pleasant old town centre, a handful of museums, and serves as a practical base for exploring central Bosnia.
The town's main square and pedestrian zone have been spruced up in recent years. The Zenica City Museum holds a decent collection covering local history, and the old clock tower (Sahat Kula) is worth a quick look. The Bosna River Park is good for a walk. Zenica is also a gateway for reaching the nearby medieval fortress ruins at Vranduk, about 12 km north.