The caves of Nottingham have been used for centuries. They certainly feature in the tales of Robin Hood but you might be surprised to know they were still in use up until Victorian times.

The oak door at St Mary's that leads to the church's crypt.

Today they offer a habitat for bats - pipistrell and long eared.

After a steep walk up Hollowstone you'll see St Mary's church, one of the oldest in the city.

At street level you'll pass a door built into stone. It's a studded oak door and is the entrance to the church's crypt. St Mary's marks the edge of the old city. The walls around the church are made of handmade bricks, some of which are up to 600 years old.

Carry on along High Pavement.