Eisenberg Castle is a medieval hilltop castle ruin north of Pfronten, Bavaria, Germany built in the 14th century.
Wikipedia https://en.wikipedia.org/wiki/Eisenberg_Castle,_Bavaria
Official Website https://www.eisenberg-allgaeu.de/tourismus/ausflugsziele/burgruinen/eisenberg.html
Address 87637, Germany
Coordinates 47°36'45.789" N 10°35'24.565" E