from Liberec built a textile factory below Christofsgrund on the Lusatian Neisse. Between 1852 and 1858, the main trunkroad was built. In 1856–1859, the railway from Liberec to Zittau was built, and the railway that passed right through the village was built in 1900. For this, a long viaduct with 14 arches has to be constructed and the long tunnel also was built. At the beginning of the 20th century, most of the population were Germans. The main source of livelihood was agriculture, especially arable farming and cattle breeding, but due to its difficult operation in the hilly landscape and low yields, many residents worked in forestry, worked as craftsmen in the surrounding villages, or commuted to work in factories in nearby Liberec. In 1921, the Czech name of the municipality was changed to Údol Svatého Kryštofa. As a result of the Munich Agreement, Christofsgrund was annexed by Nazi Germany in 1938. After the war, the Germans were expelled. In 1960, the municipality was renamed Kryštofovo Údolí. From 1980 to 1990, Kryštofovo Údolí was incorporated into Chrastava. Demographics Transport Kryštofovo Údolí lies on the railway line leading from Liberec to Děčín. Sights The village of Kryštofovo Údolí is protected as a village monument zone for a preserved set of folk architecture, consisting of multi-story houses with a timbered ground floor and half-timbered floor. The landmark and the most valuable monument is the wooden Church of Saint Christopher. It was built in the early Baroque style in 1683–1684. It is one of the few preserved timbered building with slate cladding. The walls and ceiling of the church are decorated with fifteen paintings from the life of Christ. Next to the church are wooden bell tower and mortuary, and a Baroque rectory from 1786. In the centre of Kryštofovo Údolí there is a stone bridge with a statue of St. John of Nepomuk. Other minor monuments are the Chapel of St. Christopher on the saddle between the mountains Malý Vápenný and Lom, and the Chapel of the Virgin Mary. There is a Museum of Nativity Scenes in U Kryštofa Inn with twenty nativity scenes. The oldest exhibit dates from 1846. Kryštofovo Údolí astronomical clock is a modern astronomical clock created in a former electrical substation. Railway viaducts and tunnels near Novina are technical monuments. The most notable is the Novina Viaduct, which was put into operation in 1900. It is long, and