Enter the 5000-year-old Denghoog, next to the town church, which measures 3m by 5m and is nearly 2m tall in parts. The outer walls consist of 12 stones weighing around 40 tonnes. How Stone Age builders moved these is a Stonehenge-esque mystery.

Lonely Planet's must-see attractions

Nearby Schleswig-Holstein attractions

1. Uwe Dune

0.98 MILES

Stunning Uwe Dune, at 52.5m, is Sylt’s highest natural elevation. You can climb the wooden steps to the top for a 360-degree view over Sylt and, on a good…

2. Altfriesisches Haus

3.54 MILES

The days before tourism are recalled in this 1739 house made from brick and thatch.

3. Erlebniszentrum Naturgewalten

6.99 MILES

Dedicated to the North Sea, this state-of-the-art ecological museum has multimedia exhibits that keep both kids and adults entertained (especially on…

4. Rømø Kirke

14.65 MILES

The 18th-century Rømø Church is on the main road in Kirkeby. It’s noted for its unique Greenlandic gravestones (lining the northern wall of the churchyard…

5. Naturcenter Tønnisgaard

16.42 MILES

This Rømø-based information and activity centre for the Wadden Sea National Park has exhibitions, plus family-friendly tour offerings depending on the…

6. Kommandørgården

18.03 MILES

The handsome thatched Kommandørgården, 1.5km north of the causeway, is the preserved home of one of Rømø’s 18th-century whaling captains. It stands as…

7. Emil Nolde Stiftung

18.14 MILES

By far the biggest and most impressive collection of Emil Nolde’s work is in his architecturally arresting former atelier at Seebüll. The exhibition is…

8. Møgeltønder Kirke

18.91 MILES

At the western end of Slotsgade is Møgeltønder Kirke, its lavish interior a feast for the senses. The Romanesque nave dates back to 1180 and the baptismal…