The Bars

Monk Bar is thought to be one of the finest of the city's gateways.
It was built in the 14th century making it the tallest gateway with
a portcullis still in working order. Look for the threatening stone
figures warning enemies to keep well away from the city.

Just past the Bar you can see the remains of a Roman corner tower.
Another fascinating building close to Monk Bar is the Ice House, a
small igloo of brick built just outside the city walls on the bank
that led down to the moat. It was used in the days before
refrigerators to keep food cool and store ice blocks gathered in
winter.