Basilica of St. John Lateran, Rome
Dedicated to John the Baptist and John the Evangelist, the Basilica of St. John Lateran (Basilica di San Giovanni in Laterano) is the first among the four major basilicas of Rome. Built by Constantine the Great in the 4th century, San Giovanni in Laterano was the first church to be built in Rome. It contains several important relics, a lovely 13th-century cloister and an ancient baptistery (San Giovanni in Fonte).
An earlier post details the spectacular interior!
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