The Cathedral of the Assumption of Our Lady at Sedlec is one of the finest and most unusual buildings in the Czech Republic — a UNESCO World Heritage Site that almost nobody visits compared to the famous ossuary a hundred metres away. The exterior is striking: a long white nave with soaring buttresses and pointed Gothic profiles, but built in the early 18th century with all the sophistication of mature Baroque spatial design.
Inside, the nave is luminous and surprisingly serene, the white plaster vaulting creating a quality of light very different from medieval Gothic stone. The way Santini-Aichel resolved the tension between the two architectural vocabularies is genuinely impressive — Gothic structure translated into Baroque surface. The church has been carefully restored and is open to visitors. It takes perhaps 20 minutes to see properly, but the walk from the ossuary is trivial. Seeing both in sequence is much better than seeing either alone.