St. Olav's Cathedral

Trondheim Cathedral School (Norwegian: Trondheim katedralskole, Latin: Schola Cathedralis Nidrosiensis) is an upper secondary school located next to the Nidaros Cathedral in the center of Trondheim, Norway. The school has an enrollment of 596 and the current Head of school is Tor Bitusøyl.

The Archbishop's Palace in Trondheim (Norwegian: Erkebispegården i Trondheim) is a castle and palace in the city of Trondheim, located just south of the Nidaros Cathedral. For hundreds of years, the castle was the seat, residence and administrative center of the Archbishop of Nidaros.

Kristiansten Fortress (Norwegian: Kristiansten Festning, historically spelled Christiansten) is located on a hill east of the city of Trondheim which is located within Trondheim Municipality in Trøndelag county, Norway, named after Christian V of Denmark-Norway. It was built after the city fire of Trondheim in 1681 to protect the city against attack from the east.

Steinvikholm Castle (Norwegian: Steinvikholm slott) is an island fortress on the Skatval peninsula in the present-day Stjørdal Municipality in Trøndelag county, Norway. The castle was built over seven years, from 1525 to 1532, by Norway's last Roman Catholic Archbishop, Olav Engelbrektsson.