A reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRTC–A reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

Reconstructed Viking ships of the 11th century, discoverd in the Roskilde fjord in 1962, are presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRTB–Reconstructed Viking ships of the 11th century, discoverd in the Roskilde fjord in 1962, are presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRTA–A reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRTD–A reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRXH–Reconstructed Viking ships of the 11th century, discoverd in the Roskilde fjord in 1962, are presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRX9–A reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

A Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRYT–A Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, is presented in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

Visitors take a look at reconstructed Viking ships of the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio

RMDAWRXC–Visitors take a look at reconstructed Viking ships of the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio

Visitors take a look at Viking ships from the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRYN–Visitors take a look at Viking ships from the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

Visitors take a look at a reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizi

RMDAWRWN–Visitors take a look at a reconstructed Viking ship of the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizi

RMDAWRXW–Visitors take a look at Viking ships from the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini

RMDAWRXR–Visitors take a look at Viking ships from the 11th century, discoverd in the Roskilde fjord in 1962, in the ship hall of the museum for Viking ships in Roskilde, Denmark, 22 May 2007. Shipbuilding and seafaring of the Vikings are presented in the museum that has its own wharf and an archaeological workshop and offers Viking ship boat trips in the summer. Photo: Maurizio Gambarini