Oyster shells are bulky and plain, but the treasures they hold go beyond their tasty meat and beautiful pearls. One company in Hong Kong is turning them into materials for constructing buildings.

PENSACOLA, Fla. (WKRG) — The Pensacola and Perdido Bays Estuary Program has collected over 25 tons of oyster shells since launching The Oyster Alliance in August. Charges pending after fight at ...