St. Michael's Church, Aachen

The Proserpina sarcophagus is a Roman marble sarcophagus from the first quarter of the third century AD, in which Charlemagne was probably interred on 28 January 814 in Aachen cathedral. It is displayed today in the Aachen Cathedral Treasury.

The Aachen Cathedral Treasury (German: Aachener Domschatzkammer) is a museum of the Roman Catholic Diocese of Aachen under the control of the cathedral chapter, which houses one of the most important collections of medieval church artworks in Europe. In 1978, the Aachen Cathedral Treasury, along with Aachen Cathedral, was the first monument on German soil to be entered in the List of UNESCO World Heritage Sites. The treasury contains works from Late Antique, Carolingian, Ottonian, Staufen, and Gothic times. The exhibits are displayed in premises connected to the cathedral cloisters.

The Cross of Lothair or Lothair Cross (German: Lotharkreuz) is a crux gemmata (jewelled cross) processional cross dating from about 1000 AD, though its base dates from the 14th century. It was made in Germany, probably at Cologne. It is an outstanding example of medieval goldsmith's work, and "an important monument of imperial ideology", forming part of the Aachen Cathedral Treasury, which includes several other masterpieces of sacral Ottonian art. The measurements of the original portion are 50 cm height, 38.5 cm width, 2.3 cm depth. The cross comes from the period when Ottonian art was evolving into Romanesque art, and the engraved crucifixion on the reverse looks forward to the later period.

The Throne of Charlemagne (German: Karlsthron or Aachener Königsthron, "Royal Throne of Aachen") is a throne erected in the 790s by Charlemagne, as one of the fittings of his palatine chapel in Aachen (today's Aachen Cathedral) and placed in the Octagon of the church. Until 1531, it served as the coronation throne of the King of the Romans, being used at a total of thirty-one coronations. As a result, especially in the eleventh century, it was referred to as the totius regni archisolium ("Archstool of the Whole Realm"). Charlemagne himself was not crowned on this throne, but instead in the Old St. Peter's Basilica in Rome by Pope Leo III in 800 AD.

The Aachen tramway network (German: Straßenbahnnetz Aachen) was the backbone of public transport in Aachen, now in the federal state of North Rhine-Westphalia, Germany, and the surrounding areas from 1880 to 1974. The track gauge was 1,000 mm (3 ft 3+3⁄8 in), see Nordrhein-Westfalen. At times, the network also extended into Belgium and the Netherlands. At its maximum extent, its route length was 181.4 kilometres (112.7 mi) and its line length was 213.5 kilometres (132.7 mi). In 1914, it was the fourth largest tramway network in Germany. Also, it was one of the most extensive German interurban networks. In 1974, the last tramway in the network was closed. The network was operated from 1880 by the Aachener und Burtscheider Pferdeeisenbahn-Gesellschaft (in English: Aachen and Burtscheid Horse Railway Company), which in 1894 became the Aachener Kleinbahn-Gesellschaft (AKG, in English: Aachen Light Railway Company). In 1942 the name was changed to Aachener Straßenbahn und Energieversorgungs-AG (ASEAG, in English: Aachen Tramway and Power Company). It is now a bus company, but the company name still refers to trams.

The Barbarossa Chandelier (German: Barbarossaleuchter) was made on the order of Emperor Frederick I, nicknamed Barbarossa, and his wife Beatrice sometime between 1165 and 1170 and was installed under the cupola of the Palatine Chapel in Aachen Cathedral. The chandelier was a donation in honour of Mary, Mother of God, the patroness of Aachen Cathedral and simultaneously represented a tribute to the builder of the cathedral, Charlemagne.

Aachen Chapel of Hungary (Hungarian: Aacheni magyar kápolna) is a side chapel of the Aachen Cathedral (German: Aachener Dom), one of the oldest cathedrals in Europe.

The Bust of Charlemagne (de: Karlsbüste) is a reliquary from around 1350 which contains the top part of Charlemagne's skull. The reliquary is part of the treasure kept in the Aachen Cathedral Treasury. Made in the Mosan region (the valley of the River Meuse), long a centre of high-quality metalwork, the bust is a masterpiece both of late Gothic metalwork and of figural sculpture. The Bust of Charlemagne, as a masterpiece of Mosan goldwork, initiated a height of silver-gilt naturalistic reliquary busts.

Aachen Cathedral (German: Aachener Dom) is a Roman Catholic church in Aachen, Germany and the seat of the Roman Catholic Diocese of Aachen. One of the oldest cathedrals in Europe, it was constructed by order of Emperor Charlemagne, who was buried there in 814. From 936 to 1531, the Palatine Chapel saw the coronation of thirty-one German kings and twelve queens. The church has been the mother church of the Diocese of Aachen since 1930. In 1978, Aachen Cathedral was one of the first 12 items to be listed on the UNESCO list of World Heritage sites, because of its exceptional artistry, architecture, and central importance in the history of the Holy Roman Empire.

The Marienschrein (Shrine of Mary) in Aachen Cathedral is a reliquary, donated on the order of the chapter of Mary around 1220 and consecrated in 1239. Along with the Karlsschrein, the artwork, which is from the transitional period between romanesque and gothic, is among the most important goldsmith works of the thirteenth century.

Aachen-Mitte is one of the seven boroughs of the city of Aachen, Germany, and contains the quarters of Beverau, Bildchen, Burtscheid, Forst, Frankenberg, Grüne Eiche, Hörn, Lintert, Pontviertel, Preuswald, Ronheide, Rothe Erde, Stadtmitte, Steinebrück and West. As the center of the city of Aachen, the district is by far the most populated, with over 168,000 residents. It contains both the Aachen Cathedral and Aachen Rathaus, which are each near the city center, as well as Aachen's main theatre. Numerous squares, including Hansemannplatz, Kaiserplatz, and Lindenplatz are likewise contained within the district, as is the medieval Ponttor, which was one of the original gates in the wall surrounding the city.

The Karlsschrein (English: Shrine of Charlemagne) is located in Aachen Cathedral and contains the remains of Charlemagne. It was completed in 1215 in Aachen at the command of Frederick II, Holy Roman Emperor. Previously, Charlemagne's remains had been in the Palatine Chapel part of the cathedral until 1165, when Frederick Barbarossa placed the remains in a sarcophagus beneath the floor of the cathedral. Frederick II personally carried out the transfer of the bones and the sealing of the shrine on 27 July 1215, the first anniversary of the Battle of Bouvines, which had spurred him to seek the German throne. Two days before, he had been crowned again and finally as the King of the Romans at Aachen.