View from ruined window of the Lietava Castle during summer day. The Lietava Castle is an extensive castle ruin in the Sulov Mountains in northern Slovakia. This castle is located near village of Lietava. The castle was built in 13th century and became important administrative and military center. This castle ruin is inscribed in the list of cultural heritage monuments of Slovakia. Castle is opened for public and it is definitely worth a visit especially as all day hiking trip.