Denmark
Roskilde was once the capital of Denmark, and the beautiful cathedral there (a World Heritage site) contains 38 royal tombs, including that of Harald Bluetooth.
The fjord is a short walk down the hill and has an extensive museum and boatbuilding yard where traditional Viking longships are made and sailed before your very eyes.
When I visited the place it was swarming with tiny children all done up in lifejackets enthusiastically climbing aboard these craft and setting sail, under expert supervision. The Vikings are evidently still keen.
Roskilde town, a short train ride from Copenhagen central station. Then walk to the cathedral and fjord.
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