Peters letter P challenge was to visit his most favourite ever, building the Pantheon.
From the outside this building looks like a Roman temple with its row of columns and you cannot see the domed roof at all. Once inside it's like magic. It's not rectangular and it has a huge domed roof with an opening to let the light it.
The building is circular with a portico of large granite Corinthian columns. Almost two thousand years after it was built, the Pantheon's dome is still the world's largest unreinforced concrete dome. The dome height and diameter are the same!! 43 metres
it was built in the 7 th C and has been in continuous use ever since.
Thankyou Peter. What a structure and easy to see now, why it is your fave.