Pravčická brána
Pravčická brána is a natural sandstone arch about 3 km northeast of Hřensko, with a span of 26.5 m and an inside height of 16 m, the largest natural sandstone arch in Europe. It is a national nature monument; visitors see it from terraces beside the Falcon's Nest, a lodge built in 1881 by Prince Edmund Clary-Aldringen.
