1. Bergenhus Fortress
Just north of Bryggen, sitting where the harbor meets the open sea, Bergenhus is one of the oldest and best-preserved fortresses in Norway. The name literally means "fortified castle," and that is exactly what it was: a royal residence and administrative center during the centuries when Bergen was Norway's capital. The grounds are open daily from 6 AM to 11 PM and entrance is free. The fortress sprawls across a grassy area between Koengen to the east and the harbor to the west. On a sunny day, locals spread out on the lawns, and the atmosphere is more park than military installation. But the history runs deep. The Rosenkrantz Tower, considered Norway's architectural masterpiece of the 1500s, stands within the complex. Håkonshallen, the great stone hall built in the 1260s for King Håkon Håkonsson's coronation banquet, sits beside it. Both are worth entering if you want to understand Bergen's medieval importance. As a must-see in Bergen, the fortress works best combined with Bryggen and the Fish Market, all within a 10-minute walk of each other. The harbor-front location also means you get views across Vågen without climbing anything, a welcome contrast to the mountain viewpoints at Fløyen and Ulriken.