At the northern end of Oslofjord in Oslo Harbor as we pulled into dock, we could see the recently completed (opened in 2008) Oslo Operahuset, the Opera House, across the water.

Covered in white granite and marble, the Opera House was designed to appear as if it was rising from the water.

And pedestrians – and skateboarders – are encouraged to walk up its angled roof.

From the top (on Thursday afternoon), we looked back at the cruise ship we would take on our return voyage to Copenhagen, the Crown Seaways.

Then, trying desperately not to tumble down roof, we made our way back down and to the city.