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The Basilica di Aquileia is one of the oldest religious structures in Italy, dating back over 1,600 years to the 4th century AD. 2. Hidden within the basilica's crypt is an astonishing mosaic floor, covering an area of 760 square meters, showcasing intricate designs and vibrant colors. 3. Aquileia's basilica boasts the tallest bell tower in the country, standing at an impressive height of 73 meters (240 feet). 4. Legend has it that hidden beneath the basilica's grounds lies a secret underground tunnel system, believed to have been used by early Christians for worship during times of persecution. 5. The basilica is a UNESCO World Heritage Site, recognized for its remarkable cultural and historical significance, as it was once one of the largest and most important cities of the Roman Empire.
