From the ruins the city of Frankfurt am Main and large parts of the Rhine-Main Plain may be seen.

The castle changed owners in quick hereditary succession from the end of the 14th century.

Around 1500 the enceinte was reinforced with flanking towers and the late Gothic bergfried converted into the butter churn shape (similar to that in Idstein).

In the early 17th century the castle passed into the possession of the lords of Staffel.

In a deed dated 18 January 1680 Adolf Johann Karl Freiherr von Bettendorf (successor to the childless Gerhard Adam von Staffel) received the schloss and village of Falkenstein as a Nassau-Weilburg fief.

The castle is commemorated in literature by the poet Stefan George (1868-1933) in his last anthology, Das Neue Reich (1928), with the poem Burg Falkenstein: To the wooded hilltop, I climb up near to you, where on the gnarled square corner tower, the round tower rises up..." ("Zur bewaldeten kuppe / stieg ich an neben dir / Wo auf rauh-gradem eckturm / sich der rundturm erhebt [...]" [1] The enceinte, part of the shield wall, the 18-metre-high bergfried on a base of 6.75 by 6.75 metres with its elevated entrance at a height of four metres, remains of a building on the east side and two artillery towers are well preserved.

Usually access is controlled by members of the Falkenstein Local History Society who charge an entry fee of 2 euros per person.