Martinsburg Castle with its powerful hexagonal tower was built around 1324 as a toll station on the Rhine bank in Oberlahnstein. It was a toll castle in the Electorate of Mainz. The pictorial assembly was built together with the town fortification.
The pointed gate in the east wall shows a delicate cast iron oriel with emblem (1395). The north wing probably contained the main rooms. The apartment tower in the northwest, built in the 14th century, was modified in the 18th century. The south wing is likewise Gothic. The archbishop Franz Lothar von Schönborn established the southwest and west wing between 1719 and 1721; there the main tower (end of the 14th century) is assembled; at its windows one sees outside small console stones for the fold-down wooden shutters. The roof dates from the 18th century.
References:The church of the former Franciscan monastery was built probably between 1515 and 1520. It is located in the UNESCO World Heritage Site of Old Rauma. The church stands by the small stream of Raumanjoki (Rauma river).
The exact age of the Church of the Holy Cross is unknown, but it was built to serve as the monastery church of the Rauma Franciscan Friary. The monastery had been established in the early 15th century and a wooden church was built on this location around the year 1420.
The Church of the Holy Cross served the monastery until 1538, when it was abandoned for a hundred years as the Franciscan friary was disbanded in the Swedish Reformation. The church was re-established as a Lutheran church in 1640, when the nearby Church of the Holy Trinity was destroyed by fire.
The choir of the two-aisle grey granite church features medieval murals and frescoes. The white steeple of the church was built in 1816 and has served as a landmark for seafarers.