The city walls and defensive moat were built in 1473.

The defensive moat of the castle is still visible.

Archaeological excavations at Chang'an show that wooden bridges were built over the defensive moat and led to the gatehouses.

He had the current edifice built complete with defensive moat as he (quite rightly) feared assassination.

A drawbridge was historically the hinged bridge at a castle's gates providing entry across a defensive moat.

A defensive moat may have surrounded the barmkin in the past.

This defensive moat was to become the 'Stokes Bay Lines'.

The area of 5-6 hectares is surrounded by a ditch, probably a defensive moat, five or six meters wide.

The "Long Ears" dug a defensive moat on the eastern end of the island and filled it with kindling.

Later villagers built a defensive moat following the ditches of the old enclosure.