"Scrovegni Chapel, which is completely covered in vivid, emotive frescoes by Giotto—including a deep-blue starry sky on the vaulted ceiling—is a true jewel box. Even if you never cared about Renaissance art before, the haunting biblical scenes and stunning use of color will blow you away. Because the space is so small, and because the art is so sensitive to environmental damage, you can only see it with a timed ticket that must be booked at least 24 hours in advance; we recommend reserving at least four days in advance." - Andrea Whittle
Getty