Trondheim

Near the ruins of King Sverre's medieval castle is this open-air historical museum that depicts everyday life in Trøndelag during the 18th and 19th centuries. — Fodor's

The palace was the archbishop's residence until it was occupied by Danish governors after the Reformation, and later requisitioned by the army. — Michelin Guide

Visit Scandinavia's oldest secular building in conjunction with Nidaros Cathedral. — Frommer's