Falkenstein Castle was built in the 12th century. It is one of the most impressive and best preserved Castles in Germany's Harz region. Burg Falkenstein is part of the 80 buildings (mostly castles and more so churches) along Germany's Romanesque Road. All buildings were influenced by a Romanesque building style characterized by the typical round-arched architecture.
Scotland Dirleton Castle The ruins comprise a 13th-century keep, and a 16th-century house which the Ruthvens built adjacent. Only the basement levels survive of the 14th- and 15th-century additions built by the Haliburtons. Other buildings within the courtyard have also been demolished. Surrounding the castle are gardens, which may have been first laid out in the 16th century.The garden walls enclose a 16th-century doocot, or pigeon house.
Castel Requesens - Catalonia, - Probably existing since the 9th century, the castle is mentioned for the first time in the 11th century. In the 19th century, the ruined castle was rebuilt in a neo-medieval style