Although the 250 people taking part built more than 683 castles, only 678 were verified as being tall enough.

BBC: Dorset

Roger DeClements says his Idaho-based firm, CastleMagic , has already constructed four castles and has two more in the pipeline.

FORBES: Castles For Sale

CastleMagic has built four castles so far, with two more under way.

FORBES: Castle 4 Sale