Burgruine Waisenberg

The castle occupies a rocky, forested limestone hill and the main stronghold forms an almost square enclosure about 33 by 35 metres, surrounded by a roughly 230-metre-long circuit wall. An inner courtyard of roughly three hundred square metres lies within these defenses. Surviving masonry shows work from Romanesque, Gothic and Renaissance phases, so elements from the twelfth through the sixteenth centuries can be seen in the fabric.

The entrance sequence begins at a two-storey outer gate tower on the southeast that dates to the sixteenth century. From that gateway the approach winds in a counterclockwise spiral of roughly 270 degrees before a second outer gate, situated about ninety metres farther on, and then an inner gate on the west side of the main enclosure. Both outer and inner entrances contain vaulted gate passages. The gate towers and the surrounding wall retain crenellated battlements and narrow slit-like openings, though many openings for light and view reflect later, post-gunpowder modifications.

A substantial round keep stands at the northwest corner. Built in the fifteenth or late fifteenth to early sixteenth century, it rises five storeys and is notable for large window openings instead of the narrow arrow slits typical of earlier keeps. The ruined top storey once housed a circular chapel dedicated to Saint Andrew; traces of a flat dome survive and painted apostle crosses are visible on the interior walls. The level below the chapel is a circular room about 6.6 metres across with a simple stucco vault, pronounced window niches and the remains of a fireplace.

The residential range evolved over centuries. An original early Gothic great hall was heavily remodelled in the fifteenth and sixteenth centuries and was given one-storey arcades facing the courtyard. The four-storey west wing of the main enclosure survives best, retaining a usable stair and late Gothic profiled door and window surrounds. Many of the southern living quarters have collapsed and lie in rubble, while the west tract still shows clear phases of late medieval workmanship.

Vertical circulation within the complex is striking in several places. From the outer gate hall a distinctive spiral stair of forty-four steps ascends through a total rotation of 810 degrees to a bastion and the southern inner ward. Adjacent to the inner gate an originally grand two-armed stair rose to the first and second floor chambers, though the steps of that later stair no longer survive.

Practical installations include a cistern at the southeast end of the courtyard that once supplied water, and a series of vaulted cellar rooms below the living areas. Some basement and tower floors were finished with a hard cement-like mortar mixed with local sand and lime. Modern plans indicate a small postern, a secondary exit, on the northwest exterior of the main enclosure with a stair linking up to the ring wall.

Decorative work remains in a few places. Above the rounded-arch outer gate three shallow wall niches once held a carved coat of arms and two figures associated with Andreas von Spangstein. The carved stone showing a girl holding an elder twig together with a bilingual German and Latin inscription is preserved in the possession of the Christallnigg family in Eberstein. Much of the visible masonry incorporates Romanesque fragments set into later walls, alongside late Gothic window and door surrounds and sixteenth-century curtain walling. Large parts of the complex have collapsed into rubble, vegetation grows from the masonry and many elements are eroded, leaving the ruin in a fragmentary but archaeologically layered state.