The megalithic temples in Malta are unique in terms of their apsidal design. The earliest temples date to more than 5,000 years ago. With 'altars,' megalithic trilithon entrance ways, 'fat lady' statues and many other enigmatic features, the temples are full of mystery. Some of the best preserved ones are UNESCO World Heritage Sites. Considering the small size of the islands, the number of temples is astounding and there used to be many more.