In essence, the approximately rectangular, 80-metre-long, Hohenstaufen period inner ward has survived, having been little altered over the centuries.
A diagonally oriented bergfried stands on the uphill side.
On the south side is a gate tower with a stepped portal and a castle chapel with bay window on the upper storey of the apse.
The spacious palas is situated on the downhill side of the castle.
Its window arches on the upper floor, which are comparable to those of the imperial palace of Gelnhausen and Château de Guirbaden in Alsace, are of high artistic value.

The partition wall in the middle of the courtyard is a post-Hohenstaufen addition.
That apart, there have been hardly any structural changes to the castle over the years, which is why Wildenberg, despite its ruinous state, is regarded as one of the best preserved Hohenstaufen castles in Southern Germany.

The castle is rich in various mason's marks (at least 50 different ones have been found), some of which are also found on other castles of the Rhine-Main-Neckar region, e.g. Stolzeneck Castle on the River Neckar and also in the palace at Gelnhausen.

The castle is situated at the beginning of the spur ridge south-west of Preunschen.
A few metres above the castle is the Fels(en)burg ("Rock Castle"), a cave hewn out of a natural, rock formation, with a rectangular stone entrance portal.
The rock was hewn and the stone slabs so arranged to form a flat platform above.
It may be conjectured that this was designed as a sort of outer ward to protect the spur side, but that has not been proven.
In essence, the approximately rectangular, 80-metre-long, Hohenstaufen period inner ward has survived, having been little altered over the centuries. A diagonally oriented bergfried stands on the uphill side. On the south side is a gate tower with a stepped portal and a castle chapel with bay window on the upper storey of the apse. The spacious palas is situated on the downhill side of the castle. Its window arches on the upper floor, which are comparable to those of the imperial palace of Gelnhausen and Château de Guirbaden in Alsace, are of high artistic value.
The partition wall in the middle of the courtyard is a post-Hohenstaufen addition. That apart, there have been hardly any structural changes to the castle over the years, which is why Wildenberg, despite its ruinous state, is regarded as one of the best preserved Hohenstaufen castles in Southern Germany.
The castle is rich in various mason's marks (at least 50 different ones have been found), some of which are also found on other castles of the Rhine-Main-Neckar region, e.g. Stolzeneck Castle on the River Neckar and also in the palace at Gelnhausen.
The castle is situated at the beginning of the spur ridge south-west of Preunschen. A few metres above the castle is the Fels(en)burg ("Rock Castle"), a cave hewn out of a natural, rock formation, with a rectangular stone entrance portal. The rock was hewn and the stone slabs so arranged to form a flat platform above. It may be conjectured that this was designed as a sort of outer ward to protect the spur side, but that has not been proven.
Wildenberg Castle (Kirchzell)