Tvrz Javorník, Fortified house in Javorník, Czech Republic.

Tvrz Javorník is a vanished fortress in the village of Javorník, of which only the terrain remains: a 2–3 m high acropolis with an oblong cellar beneath its higher eastern part, roofed with a sharply pointed barrel vault of quarry stone.

The fortress was first recorded in writing in 1416, when Přech of Javorník held it; the village itself is mentioned as early as 1291. It likely arose with mining colonisation and gold panning. The lords of Javorník kept it until 1528, when Martin Radikovský of Hrádek acquired it and sold it five years later to Adam Zilvár of Pilníkov. Attached to the Pilníkov estate, it lost importance and fell into ruin during the 16th century.

The name Javorník comes from the maple tree (javor) and gave its name to the lords of Javorník, who held the fortress until 1528. The site later carried a farmyard and then a pub, which was demolished and replaced by a park; the rectangular cellar with its steep pointed barrel vault survives beneath the eastern part.

The site lies in the village of Javorník in the Trutnov district, not in the town of Javorník near Jánský Vrch. The remains are a protected cultural monument: a 2–3 m high acropolis with a rectangular cellar under its higher eastern part. No guided tours are offered; the cellar has a steeply pointed barrel vault of quarry stone.

The fortress vanished; what survives is a rectangular cellar with a sharply pointed barrel vault of quarry stone, set beneath the higher eastern part of the 2–3 m high acropolis. A farmyard, then an inn, later stood on the site; the inn was demolished and a park made on the fortress ground.