You must visit the Pantheon, it's a breathtaking building with a spiritual ambience.
A perfect geometric construction, the famous dome is amazing; looking up, it appears to get bigger the longer you stare at it!
The walls are adorned with wonderful artwork that glisten when the sunlight pours through the dome.
Typically, there are many people with selfie sticks, but you can ignore them as you walk around.
I'd suggest going earlier in the day to avoid the crowds.
Public - 3 months ago