Letohrádek Kamýk, Garden pavilion ruins on Kamýk Hill in Osek u Rokycan, Czech Republic

Letohrádek Kamýk is the ruin of a summer palace on the edge of Osek in the Rokycany district. Of the original rectangular single-storey building, 14 by 10 metres, both long walls survive, each with four windows. The corners were rounded, the façades divided by pilasters, and the windows carried plaster ornaments and festoons above them.

Letohrádek Kamýk was probably built between 1720 and 1740 as part of the landscape park of Osek Castle; the Nostic family, owners of the estate, are the likely builders, and Plzeň architect Jakub Auguston the probable designer. The court chamber bought the estate in 1774 and the unused pavilion decayed; by 1839 it was a ruin.

The name Kamýk refers to the rocky outcrop on which the pavilion stands. The building was part of the landscape park of Osek Castle, and together with the park remains and the Jewish cemetery it is protected as a cultural monument of the Czech Republic. The builder is unknown; analysis of the building details points to 1720–1740 and to the Nostic family, with Plzeň architect Jakub Auguston as probable designer.

You can reach this spot by following the blue-marked hiking trail from Osek, which winds uphill through the surrounding countryside. The path is well-marked and moderately graded, making it accessible for most visitors.

The identity of the pavilion's builder is unknown; analysis of its building details points to construction between 1720 and 1740, probably by the Nostic family, who owned Osek Castle, with Plzeň architect Jakub Auguston as likely designer. A visitor can still see the four windows in each surviving longitudinal wall and the rounded corners of the original 14 by 10 metre ground plan.