The Frýdlant Castle and Chateau is one of the most frequently visited historic buildings in the Czech Republic.
Hamrštejn Castle is situated on the rock extension high above the Lužická Nisa River.
In the 14th century a rock tower was built on the robust rock in order to keep watch over the merchant route over the mountains.
The chateau in Liberec was built in the Renaissance style. The construction was completed in 1587. The valuable Renaissance chapel built at the beginning of the 17th century is well-preserved.