Hven

The island of Hven is Swedish, but, well, it has long been contested territory. Hence the numerous flags.
Here Tycho Brahe (1546-1601) looked at the sky, without any telescope but with big and subtarrenean quadrants, surrounded by a whole slew of gardeners, cooks, scribes, children, paper-mill operators, and produced and published many super-fine calculations.
There are also lovely alpagas.