The Pantheon blew me away, we visited it every day we were in Rome. What an amazing architectural feat! it is still a functioning church, which I think sometimes gets forgotten as people were disrespectful.
At times it got very busy but this didn't detract from my experience. This was probably one of my favourite places to visit in Rome. Also it has no queues and it's free. And most importantly it houses Raphael's tomb!

Pantheon is certainly a must-see attraction in Rome. I love it a lot because (1) entrance is free (2) architecture is amazing, and (3) you get a different experience each time you visit it. Its columns at the entrance and the sunlight which protrudes from the dome centre certainly do not fail to amaze the casual visitor. Those looking for a little historical lesson will be intrigued by the mystery surrounding the Pantheon's supposed origin and purpose during ancient Rome times.

Sitting in the middle of the city, surrounded not by vast spaces, like the Roman ruins, or acres of piazza, like St. Peter's, you turn a corner onto a small piazza and there it is. The board announcing mass times had me confused at first, since I had missed the fact that this is now a functioning Catholic church. But once inside, the ancient Roman structure dominates all. Looking up at the oculus and seeing how it lights the vast space made me admire the Roman architects as much as anyone on the Palatine Hill. It was also lovely later in the week to see the interior space duplicated in the Sala Rotunda in the Vatican Museums. It was almost as lovely there.

This is a must visit attraction in Rome. Upon entering the Pantheon, you will be dwarfed and awed by its dome. It is the best preserved structure in Rome. The oculus or the round opening in the middle of the dome is the only source of light of the Pantheon.