The region lined in the north by the barrier of the Krušné hory (Mountains) is marked by a number of natural beauties, historic points of interest, architectonic jewels and other attractive places. The attractive monuments include the chateaus in Duchcov, Klášterec nad Ohří, Krásný Dvůr, Libochovice, Ploskovice and Velké Březno. The face of North-western Bohemia would not be complete without natural beauties; every year thousands of visitors are attracted by the Lužické hory (Mountains), České středohoří with the charming valley of Labe Porta Bohemica or interesting rock formations of the Labské sandstones and the National Park České Švýcarsko. Their admirers find also the spa Teplice and Zahrada Čech (the Garden of Bohemia), fertile landscape with extensive fruit orchards, vineyards, hop-gardens and the memorable mountain Říp.