The Mystery in the Deep: Pop-up Exhibition and Special Tours

[Translate to English:] Gåden i Dybet særudstilling på Vikingeskibsmuseet. (Foto: Martin Rieck. Fotobehandling: Kim Bredahl, DR)
[Translate to English:] DR dokumentaren, Gåden i Dybet, har premiere imellem jul og nytår. Den følger Vikingeskibsmuseets marinarkæologer i det spændende arbejde med udgravning af et helt specielt skib (Foto: Martin Rieck. Fotobehandling: Kim Bredahl, DR)

Maritime archaeologists have discovered a massive shipwreck off Copenhagen – a medieval vessel that has now been confirmed as the world’s largest cog. On 28, 29 and 30 December, visitors can explore the pop-up exhibition The Mystery in the Deep, featuring original finds from the excavation. On 28 December, guests will also have the chance to meet one of the maritime archaeologists from the documentary and hear about the work carried out beneath the sea.

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The Mystery in the Deep: For 600 years, the sea has hidden a secret

For six centuries, a shipwreck lay buried under sand and silt in the waters off Copenhagen. Maritime archaeologists from the Viking Ship Museum have discovered and excavated the medieval vessel, which has now been confirmed as the world’s largest cog.

On 28 December, the DR documentary The Mystery in the Deep premieres on DRTV. Across four episodes, historian Cecilie Nielsen follows the excavation and exploration of this sensational ship find.

» Link to the documentary at DRTV

To mark the occasion, the museum is hosting a pop-up exhibition in the maritime archaeologists’ workshop on 28, 29 and 30 December. Here, you can see original artefacts from the excavation and gain insight into the advanced work with 3D models and reconstructions. On 28 December, visitors will also have the chance to meet one of the maritime archaeologists featured in the documentary and hear about the work carried out beneath the sea.

Meet a Maritime Archaeologist

On 28 December, as part of the documentary premiere, visitors to the Viking Ship Museum can meet one of the maritime archaeologists from 13:00 to 14:00 in the workshop.

Pop-up Exhibition and Special Tours (in Danish)

Sunday, 28 December 2025

  • 11:00–15:00: Visit the pop-up exhibition
  • 13:00–14:00: Meet a maritime archaeologist
  • 14:00–15:00: Special tour about maritime archaeology (in Danish)

Monday, 29 December and Tuesday, 30 December 2025

  • 11:00–15:00: Visit the pop-up exhibition
  • 14:00–15:00: Special tour about maritime archaeology (in Danish)

Special Tour with an Archaeologist (in Danish)

Join the archaeologist for a special tour through 60 years of maritime archaeology at the Viking Ship Museum – from the Viking ships of the 11th century excavated at Skuldelev to 19th-century cargo vessels.
The tour begins in the Viking Ship Hall and continues to the maritime archaeologists’ workshop on the Museum Island. The event is included in the museum admission ticket.

The New Year programme marks the start of a year dedicated to maritime archaeology, featuring lectures, storytelling and activities for both children and adults.

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