Borgholm Castle (Swedish: Borgholms slott) in Borgholm, Sweden, is today only a ruin of the fortress that was first built in the second half of the 13th century and rebuilt many times in later centuries.It is linked to Halltorp estate, to the south. The castle ruin was destroyed in a fire on 14 October 1806. [wiki]

Experimental, reconstructed from various 4K drone footage only