The exact age of the original St. Mary's Church (Marienkirche) site and structure is not precisely known, but it was first mentioned in German chronicles in 1292. It is presumed to date from earlier in the 13th century. The architecture of the building is now largely composed of comparatively modern restoration work which took place in the late 19th century and in the post-war period. The church was originally a Roman Catholic church, but has been a Lutheran Protestant church since the Protestant Reformation.
Along with the Nikolaikirche, the Marienkirche is the oldest church in Berlin. The oldest parts of the church are made from granite, but most of it is built of brick, giving it its characteristic bright red appearance. This was deliberately copied in the construction of the nearby Berlin City Hall, the Rotes Rathaus. During World War II, it was heavily damaged by Allied bombs. After the war the church was in East Berlin, and in the 1950s it was restored by the East German authorities.
Before World War II, the Marienkirche was in the middle of a densely populated part of the district of Mitte, and was in regular use as a parish church. After the war, this area was cleared of ruined buildings and today the church stands in the open spaces around the Alexanderplatz, and is overshadowed by the East Berlin television tower, the Fernsehturm.
There is a striking statue of Martin Luther outside the church. The Marienkirche also contains the tomb of Field Marshal Otto Christoph von Sparr. Carl Hildebrand Freiherr von Canstein, the founder of the oldest Bible society of the world, the Cansteinsche Bibelanstalt, was buried here in 1719.
Easter Aquhorthies stone circle, located near Inverurie, is one of the best-preserved examples of a recumbent stone circle, and one of the few that still have their full complement of stones. It consists of a ring of nine stones, eight of which are grey granite and one red jasper. Two more grey granite stones flank a recumbent of red granite flecked with crystals and lines of quartz. The circle is particularly notable for its builders' use of polychromy in the stones, with the reddish ones situated on the SSW side and the grey ones opposite.
The placename Aquhorthies derives from a Scottish Gaelic word meaning 'field of prayer', and may indicate a 'long continuity of sanctity' between the Stone or Bronze Age circle builders and their much later Gaelic successors millennia later. The circle's surroundings were landscaped in the late 19th century, and it sits within a small fenced and walled enclosure. A stone dyke, known as a roundel, was built around the circle some time between 1847 and 1866–7.