MOATS

They guard castles

• Castle barriers

• Castle buffers

• Castle canals

• Castle defenders

• Castle ditches

• Castle encirclers

• Castle features

• Castle fortifications

• Castle guards

• Castle protectors

• Castle rings

• Castle surrounders

• Castle trenches

• Castle waters

• Castle-defending ditches

• Castles' defenses

• Deep ditches

• Defensive ditches

• Defensive rings

• Ditches around castles

• Drawbridges cross them

• Encirclers of castles

• Features of many modern zoos

• Fortress ditches

• Fosses

• Gator-infested waters, maybe

• Kronborg Castle features

• Medieval defenses

• Medieval security devices

• Obstacles for marauders

• Palace guards

• Palace protectors

• Perimeter defenses

• Protective rings

• Protective trenches

• Protective waterworks

• Ramparts' surroundings

• Rings around castles

• Rings around kings

• Siege deterrents

• They were filled with alligators, supposedly

• They're crossed by bridges

• Things that drawbridges bridge

• Tokyo Imperial Palace features

• Water around castles

• Watery castle barriers

• Watery trenches

• Watery trenches under drawbridges

• Wet ditches

• Zoo barriers

• Zoo confines sometimes

• Zoo dividers

• Zoo features

• Zoo trenches