Vítkův kámen, Castle ruin in South Bohemia, Czech Republic

Vítkův kámen is a ruined Gothic castle on the summit of the same-named mountain (1035 m) above Svatý Tomáš. Its core was a residential donjon measuring 14 × 17.5 m with four storeys, later enclosed by a curtain wall with five low bastions. The surviving fragments include a long low wall of irregular grey stone with small square openings and a taller patched section bearing a metal cross.

The fortress was founded in the mid-13th century and served as a defensive structure along the Bohemian-Bavarian border. Its construction was part of the medieval border fortification strategy that shaped the region's defense system for generations.

The site carries the name of a medieval ruler and still displays the characteristic architecture of that era through its stone walls and tower. Visitors today can experience the Gothic structures and understand how the fortress shaped the border landscape of its time.

The ruins stand on the 1,035 m summit of Vítkův kámen in the Šumava protected landscape area, above Svatý Tomáš near Přední Výtoň. A wooden staircase of 61 steps inside the tower leads to the viewing platform opened in December 2024. The site lies close to the Austrian border, so carry appropriate clothing for changeable mountain weather.

On clear days, visitors can see across three countries from this location: the Alps, Lake Lipno, and the Bohemian Forest all lie within view. This sweeping vista reveals why the site held such strategic value for border control.