San Lorenzo fuori le Mura is a historic basilica located in Rome, Italy. It was built in the 4th century and is dedicated to Saint Lawrence, one of the early Christian martyrs. The church is known for its beautiful mosaics and its unique architectural style, which combines elements from different periods. The basilica is situated outside the ancient city walls, hence the name "fuori le Mura," meaning "outside the walls." It serves as a significant pilgrimage site and is part of the Papal basilicas of Rome. Visitors can admire its serene atmosphere and rich history, making it a notable destination for tourists and locals alike.