Pravčická brána (Prebischthor, in German) is the largest natural stone bridge in Europe. It is located in a part of the present-day Czech Republic known as “Czech Switzerland,” a well-known tourist region close to the border with present-day Germany. The building shown in this photochrome print is known as the Falcon's Nest (Sokolí hnízdo, in Czech). It was built in 1881 by the Clary-Aldringen family, to accommodate important guests. This area was part of the Sudetenland, which was ceded by Czechoslovakia to Germany in 1938, but restored to Czechoslovakia after World War II. Natural bridges; Rock formations; Tourist sites