Tinnumburg
Tinnumburg stands near Tinnum on Sylt, Germany, as the best-preserved of the island’s three ancient ring forts. Grassy land surrounds the broad circular rampart on Sylt. Its earthwork measures about 120 metres across, rises up to seven metres, and extends roughly 440 metres around.
Built around the birth of Christ, the fort belongs to the early Roman period and served as a Germanic place of worship. Excavations took place in 1870, 1948, and 1976. After abandonment, the interior gained sod-wall houses between the eighth and tenth centuries, while the visible rampart covered the earlier one.
A tidal creek once reached the Wadden Sea northwest of the fort, while marshland spread southeast toward possible Viking Age sea access. At least two gates opened east and south. A possible western gate led toward a plateau beside Döplem Lake.
- City
- Sylt
- Content updated
Take this page with you
The myTuur app is free, and once you are standing at a spot its story starts by itself.
Spots like this one are the stops myTuur strings into tours through Sylt. In the app, each story begins where you stand: walk up to a spot and it starts, read it on screen or listen as you go, then follow the route to the next one.
What is myTuur?
myTuur is a free city-guide app. Its tours are built from spots, and each spot carries a story that starts when you get there, to read or to listen to as you like.

