Vartiokylän linnavuori

Vartiokylän linnavuori is a medieval hillfort built on a roughly 30-meter high hill with stone foundations of wooden breastworks still visible along its slopes. The structure displays multiple defensive layers that visitors can examine today.

Radiocarbon dating and archaeological excavations showed the fortress was built between 1240 and 1330 during Birger Jarl's crusade period. Russian forces later integrated it into Helsinki's defenses during World War I by adding trenches and firing positions.

The fortification displays multiple circular ramparts that set it apart from typical Finnish hillforts and resemble ancient Swedish fortress designs. This unusual layout reflects how different military traditions influenced the region's medieval defenses.

The archaeological site is openly accessible to visitors who can observe the remaining defensive structures from different periods. Researching the site beforehand helps you understand the changes made over several centuries.

The site was repurposed by Russian forces during World War I, who transformed the medieval location into a modern defensive position. This layering of old and new makes it an example of how the same ground served defense across centuries.

Location: Helsinki

Part of: World War I fortifications in the Helsinki area

GPS coordinates: 60.22054,25.12030

Latest update: December 11, 2025 18:03