Trosky Castle is a castle located on an extinct volcano in the Czech Republic. There a strange volcano with two craters was active 16 million years ago. In the 14th century, a local nobleman ordered to erect two towers on its basalt remains the taller Virgin (57 m) and the lower Baba (47 m). The rocks under the towers were connected by a 15-meter high wall, creating the courtyard of an amazing castle. The fortress towers over the area - it stands on a hill 514 meters above sea level. ¹⁾.