Towering over the western end of town, Castello D'Albertis houses an eclectic museum showcasing artefacts collected by its globetrotting owner. The neo-Gothic edifice was built in 1892 on the ruins of a much older castle for the Capitano Enrico D'Albertis, who hauled back all manner of 'curiosities' from his extensive sea voyages.
Where else could you find a stuffed platypus, a fragment of the Great Wall of China and a handful of sand from San Salvador (Columbus' first disembarkation point) in the same cabinet? If you don't fancy the climb up to Corso Dogali, there's a lift from Via Balbi (€1) to the castle gates.