Burgruine Straßfried, Castle ruin in Thörl-Maglern, Austria.

Burgruine Straßfried is an extensive castle ruin on a steep, forested hill north of Maglern, near the Austrian-Italian border. Of the original twin-tower complex, only the eastern keep survives, built of rough stone with corner quoins. The ring wall still stands to a considerable height, while only small parts of the palace remain. Around the narrow courtyard are traces of Gothic residential and utility buildings and a cistern.

Bishops of Bamberg built this fortification in the first half of the 13th century, with its first recorded mention appearing in 1279 as Castrum Strazvrid. The structure suffered major damage from French forces during the Napoleonic Wars in 1797.

The stonework visible today reflects medieval construction methods, with carefully cut blocks combined with rough stone layers forming the fortress walls. These building techniques remain visible in the remaining structures.

The site requires sure footing and proper footwear, as the ruin sits on uneven ground with steep slopes. Visitors should come prepared for changing weather conditions and allow time to explore the structure and surroundings at a comfortable pace.

The hilltop held a Celtic and Roman sanctuary, indicated by numerous lead, tin and bronze statuettes found there. Roman buildings at the southern foot later served as a late antique burial ground, and a 10th-century early medieval enamel disc brooch was also unearthed.