Kościół pw. Świętego Mikołaja

Before you look at anything else, look up. The Rotunda of St Nicholas on Cieszyn's Castle Hill is described as the only Romanesque rotunda in Poland that still keeps the vault over its nave, a dome built from rings of flat stones bound with lime mortar. The small semicircular apse to the east is closed by its own spherical half-dome. You are standing in a stone room that has held its roof for something like eight or nine centuries; the building is dated to the eleventh or twelfth century, and nobody can narrow it further than that. It belongs to a family of single-apse rotundas raised across Europe, and especially central Europe, between the eighth and thirteenth centuries.

• Written with AI from the Wikipedia article Rotunda św. Mikołaja w Cieszynie (pl.wikipedia.org); facts only from there
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