Complex sentence: A picturesque structure of international renown, the front face and keyhole entrance face north west under an up-growth of colourful vines and other plants at the base and a porch like structure formed by the lower capstone which fully encloses the rear of the structure.
Split into simpler sentences: A picturesque structure of international renown, the front face and keyhole entrance face north west under a porch like structure formed by the lower capstone. An up-growth of colourful vines and other plants rises over the base of the doorstone at the front, and fully encloses the rear of the structure.