Answer: castles

AnswerCrossword Clue
CASTLES

Bishops' allies?

CASTLES

Sand structures

CASTLES

Makes a chess move

CASTLES
Rams' targets
CASTLES
Corner chesspieces
CASTLESRoyal residences
CASTLESSymbols of royalty
CASTLESIrene and Vernon.
CASTLESOtranto, Rackrent, Zenda.
CASTLESBalmoral and Verurie.
CASTLESBalmoral and others.
CASTLESStrongholds.
CASTLESChessmen.
CASTLESDreamers' air structures
CASTLESMoves rook and king
CASTLESMakes a chess play
CASTLESRooks
CASTLESBeach sights
CASTLESCorner pieces
CASTLESEuropean tourist sites
CASTLESBuildings built on sand?
CASTLESKnights' neighbors in chess
CASTLESMoves rook and king simultaneously
CASTLESChess foursome