This is the main entrance to the Cathedral. The porch here was built in 1424, possibly to commemorate the Battle of Agincourt. The statues were added in the 19th Century.
Sorry, at the moment I have no pictures inside the Cathedral itself. However, you can get some details on an archaeological dig that took place in 1992/1993 and found the original Saxon building under the Nave floor.
Go ahead to walk past the West End of the Cathedral. Turn left for a view of some of the houses in the precincts, right to walk along the South Wall towards the Kent War Memorial Garden. Turn around to exit to the city via Christchurch Gate.