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⁾.

Scientists found that about one-third of volcanoes are more or less 4 km away from magma chambers. In the case of five volcanoes - two in Japan, two in Indonesia, and one in Mexico - this distance between the cone and the magma chamber that powers it exceeds even 10 km. “Our research has brought a big surprise,” says Lerner. According to the established view of volcanology, the magma reservoirs are located directly below the volcanoes. ²⁾.