6 Sights in Mainz-Kastel, Germany (with Map and Images)

Mainz Cathedral or St. Martin's Cathedral is located near the historical center and pedestrianized market square of the city of Mainz, Germany. This 1000-year-old Roman Catholic cathedral is the site of the episcopal see of the Bishop of Mainz.

Wikipedia: Mainz Cathedral (EN), Website

The Episcopal Cathedral and Diocesan Museum in Mainz, founded in 1925, houses works of art from two millennia in its historic rooms – the Staufen vaulted halls, the two-storey late Gothic cloister and the former chapter houses – which once belonged to the furnishings of Mainz Cathedral or the churches of the diocese. In addition, there is the cathedral's treasury, which can be reached through the chapter rooms and is located in the former St. Nicholas Chapel from the late Gothic period.

Wikipedia: Dom- und Diözesanmuseum (Mainz) (DE), Website

The carnival fountain in Mainz is located on Schillerplatz on the corner of Schillerstraße and Ludwigsstraße. The monument is intended to symbolize the foolish season. After three years of construction, it was unveiled on January 14, 1967.

Wikipedia: Fastnachtsbrunnen (Mainz) (DE)

The Walk of Fame of Cabaret is a sidewalk between Proviant-Magazin and Schönborner Hof in Mainz, Germany, which is embedded with more than 40 seven-pointed irregularly shaped stars featuring the names of cabaret celebrities selected by a group of experts and honored by several sponsors for their contributions to the cabaret culture.

Wikipedia: Walk of Fame of Cabaret (EN)

St. John's Church is located beneath Mainz Cathedral in the historical center of Mainz, Germany. This 1100-year-old church was the first episcopal see of the Bishop of Mainz. It is the oldest church in Mainz, the oldest cathedral in the Germany of today and the only preserved cathedral building from late Carolingian and early Ottonian time in Germany.

Wikipedia: St. John's Church, Mainz (EN), Website

The Osteiner Hof is one of several Baroque-era palatial mansions along Schillerplatz square in the German city of Mainz. The mansion, along the southern edge of the square, was built in 1747-1752 by architect-soldier Johann Valentin Thomann for Franz Wolfgang Damian von Ostein, brother of Johann Friedrich Karl von Ostein, who was prince-bishop of Mainz at that time.

Wikipedia: Osteiner Hof (EN)