Rozhledna Rýdův kopec u Děbolína, Observation tower in Děbolín, Czech Republic

Rozhledna Rýdův kopec is a 24-metre observation tower on Rýdův kopec near Děbolín, built as a three-sided prism with an equilateral-triangle plan about 10 m per side. It stands on a reinforced-concrete base clad in stone slabs, with a wall system below and a column system with longitudinal frames above; a wooden staircase of 120 steps leads to the glazed, roofed upper platform, and a spiral steel staircase of 102 steps descends around a central column.

The tower was designed by architect Miroslav Hájek, whose winning equilateral-triangle proposal was chosen in a public poll. Construction began in September 2014 and finished in June 2015; it opened on 8 July 2015, funded largely by a European Regional Development Fund grant through the ROP Jihozápad programme.

The viewing platform at 24 meters provides panoramic views extending to Jindřichův Hradec, Temelín, Choustník, and on clear days reaches the distant Alps.

The tower is open from April to October. A wooden staircase leads from the stone-clad base to the lower platform at 6 m, and 120 wooden steps continue to the glazed upper platform at 24 m; the descent follows a 102-step steel spiral around the central column. From Děbolín station, follow the road to the village centre and then the red hiking trail, 2 km in all.

The equilateral-triangle plan, with sides of about 10 m, was chosen because the triangle is the basic building block of any surface and a bracing element of structural strength. Three steel columns lean toward the centre to resist sway, and the glazed upper platform carries sighting roses.