Schloss Kaltenberg is a cool castle in Geltendorf, Bavaria, Germany. Built in 1292, it's now owned by Prince Luitpold of Bavaria, who's actually the great-grandson of the last king of Bavaria, Ludwig III. So yeah, it's pretty fancy and has some serious royal connections. You can check it out if you're ever in the area!
In the summer they host jousting tournaments here. And in December it transforms into the most magical Christmas Market. You have to buy a ticket to enter but it is worth it!