Experience

Viking-Age Ring Fortress Aggersborg

The world's largest ring fortress

Viking-Age Ring Fortresses

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UNESCO World Heritage

King Harald Bluetooth's five ring fortresses – Aggersborg, Borgring, Fyrkat, Nonnebakken, and Trelleborg – were included on 17 September 2023 in UNESCO's distinguished list of places of exceptional value to all humanity.

With the addition of Møns Klint in 2025, there are now 12 sites in the Kingdom of Denmark and the wider Commonwealth on the UNESCO World Heritage list. Being designated as a World Heritage site is a mark of global importance and carries the responsibility to protect, preserve, and promote knowledge of the site.

 

Download our app

Download our app and experience how the impressive fortress with its 48 long houses rises again in the landscape or take a digital guided tour by scanning the QR code on the viewing platform.

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Landscape of power

Seen from the air, you get a good idea of the fortress's impressive size and, not least, its strategic location at one of the traffic hubs of the Viking Age, the Limfjord.

See overflight of the area

Guided tours and events

Book a tour, experience the Viking craftsman meeting in August or join one of our programmed tours. Find the dates on this page.

See dates and book here

Aggersborggaard

With a history that goes all the way back to the Viking Age, Aggersborggaard is one of the country's oldest manors.

Aggersborg Church

The construction of the church began in the 12th century and ended no later than the 13th century. It appears in hewn stone blocks, which are characteristic of Vesthimmerland's Romanesque village churches.