Basilica of Sant'Apollinare Nuovo built
505 CE.
Shown on the map at 44.417°, 12.205°.
The Basilica of Sant'Apollinare Nuovo is a basilica church in Ravenna, Italy. It was erected by the Ostrogothic king Theodoric the Great as his palace chapel during the first quarter of the 6th century (as attested to in the Liber Pontificalis). This Arian church was originally dedicated in 504 AD to "Christ the Redeemer". Its present dedication dates only from the 9th century. The basilica's current façade, which features a portico, dates to the 16th century, while the adjacent tower dates to the 10th century. It was reconsecrated in 561 AD, under the rule of the Byzantine emperor Justinian I, under the new name "Sanctus Martinus in Coelo Aureo" ("Saint Martin in Golden Heaven"). Suppressing the Arian church, Justinian rededicated the church to Saint Martin of Tours, a foe of Arianism. According to legend, Pope Gregory the Great ordered that the mosaics in the church be blackened, as their golden glory distracted worshipers from their prayers.
Text from the Wikipedia article Basilica of Sant'Apollinare Nuovo, licensed CC BY-SA 4.0.