The Baptistery of Neon, also known as the Baptistery of the Orthodox, is a historic religious building located in Ravenna, Italy. Constructed in the 5th century, it is one of the oldest baptisteries in the Western world and is renowned for its stunning mosaics that depict biblical scenes, particularly the baptism of Christ. The structure features an octagonal shape and is made of brick and marble. Its interior is adorned with intricate mosaics that showcase the artistry of the early Christian period. The Baptistery of Neon is a UNESCO World Heritage site, reflecting its cultural and historical significance.