-Step inside one of the most breathtaking monuments of Ancient Rome and experience it like never before. -Admire the Grand Entrance -Walk through the original bronze doors that have welcomed visitors for nearly 2,000 years. -Stand Beneath the Great Dome -Gaze up at the largest unreinforced concrete dome in the world, with its famous oculus — an open eye to the sky that lights the space in a magical way. -Feel the Light and Silence -Watch sunlight pour in from the oculus, moving slowly across the marble floor. Even the rain is part of the design -Visit Raphael’s Tomb, see the resting place of Raphael, the beloved Renaissance painter, along with other important figures from Italian history. -Explore Hidden Stories with Your Audio Guide; discover the building’s transformation from pagan temple to Christian church. Learn about the mathematical perfection of its design, and hear the legends behind its secrets.