The National Museum of Subaquatic Archaeology (Museo Nacional de Arqueología Subacuática - ARQVA) in Cartagena is an underwater archaeology museum. It owns a large collection of pieces recovered from shipwrecks that begins in the Phoenician period, and arrives until the 19th century.
On December 2, 2012, the 14.5 tons cargo of gold and silver coins recovered from the wreck of the frigate Nuestra Señora de las Mercedes was deposited in the museum for cataloging, study and permanent display.
References:The Broch of Gurness is an Iron Age broch village. Settlement here began sometime between 500 and 200 BC. At the centre of the settlement is a stone tower or broch, which once probably reached a height of around 10 metres. Its interior is divided into sections by upright slabs. The tower features two skins of drystone walls, with stone-floored galleries in between. These are accessed by steps. Stone ledges suggest that there was once an upper storey with a timber floor. The roof would have been thatched, surrounded by a wall walk linked by stairs to the ground floor. The broch features two hearths and a subterranean stone cistern with steps leading down into it. It is thought to have some religious significance, relating to an Iron Age cult of the underground.
The remains of the central tower are up to 3.6 metres high, and the stone walls are up to 4.1 metres thick.