Takeda Castle is a ruined castle in Asago City, Hyogo Prefecture, that is also known as the "castle floating in the sky" because of the way it appears to be floating on a sea of clouds on foggy autumn mornings.
The castle was originally built in 1411 and was later conquered by Toyotomi Hideyoshi on one of his western campaigns to reunite Japan. The castle’s forces fought against the Tokugawa clan during the battle of Sekigahara in 1600, and the castle was abandoned not long after. It then gradually disintegrated over the centuries until the ruins were restored in the 1970s and 80s and the castle opened as a tourist site.
