The Cathedral of Saint Peter in Trier is the oldest cathedral in Germany. The edifice is notable for its extremely long life span under multiple different eras each contributing some elements to its design, including the center of the main chapel being made of Roman brick laid under the direction of Saint Helen, resulting in a cathedral added onto gradually rather than rebuilt in different eras. Its dimensions, 112.5 by 41 m, make it the largest church structure in Trier. In 1986 it was listed as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier UNESCO World Heritage Site.
The structure is raised upon the foundations of Roman buildings of Augusta Treverorum. Following the conversion of the Emperor Constantine the Bishop Maximin of Trier (329-346) coordinated the construction of the grandest ensemble of ecclesiastical structures in the West outside Rome: on a groundplan four times the area of the present cathedral no less than four basilicas, a baptistery and outbuildings were constructed; the four piers of the crossing formed the nucleus of the present structure.
The fourth-century structure was left in ruins by the Franks and rebuilt. Normans destroyed the structure again in 882. Under Archbishop Egbert (d. 993) it was restored once more.
The West front in five symmetrical sections remains typical of Romanesque architecture under the Salian emperors. The West end choir, with its apsidal semi-cylinder expressed on the exterior façade, was completed in 1196. The interior is of three Romanesque naves with Gothic vaulting, and a Baroque chapel for the relic of the Seamless robe of Jesus, recovered from the interior of the high altar in 1512, complete the interior.
The skull of St. Helena, the mother of Emperor Constantine, is displayed in the cathedral.References:
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.