Dům U Kamenného beránka, Cultural monument in Old Town Square, Prague, Czech Republic

The House at the Stone Lamb stands at No. 551/17 on the south side of Old Town Square, where Celetná Street opens onto it. Its core is Romanesque, with an early Renaissance portal from around 1520; a third storey and the large gable were added in the early 17th century. Interiors were rebuilt after a fire in May 1945.

The house stands on Romanesque foundations and is counted among Prague's oldest. A early Renaissance portal dates from around 1520, and a third storey and the large gable were added in the early 17th century. After a fire in May 1945 the interiors were completely rebuilt. It has been a cultural monument since 1964.

The name U Kamenného beránka is documented in 1452 and was used until the late 18th century, when the house became a pharmacy called U Bílého jednorožce. According to some sources, that unicorn name arose by mistake: the house sign by the second-floor balcony showed a ram's head that had lost one horn.

The house stands on the south side of Old Town Square, at the mouth of Celetná Street, next to the Štorch publishing house with Mikoláš Aleš's sgraffito of St Wenceslas. Look for the early Renaissance portal from around 1520 and the large gable added when a third floor was built in the early 17th century.

The house sign that gave the building its name was a ram's head beside the second-floor balcony; one of its horns broke off, so the head was taken for a unicorn and the house was later called U Bílého jednorožce. The name U Kamenného beránka is documented in 1452 and used until the late 18th century.