Casa do Penedo, "Stone House" in Portuguese, is another curious European building. It is located in northern Portugal, halfway between Celorico de Basto and Fafe, and is now a preserved historical monument. The building is sandwiched between two large rocks, hence its name - the foundations, most of the walls and parts of the ceiling. Construction began in the early 1970s and took about two years to complete. It was originally built as a holiday home for its owner, but is now a museum with artifacts and a film documenting the building's history.
