(Worldkings.org) Voortrekker Monument is home to the world's biggest marble frieze. The Voortrekker Monument is 40 metres high, with a base of 40 metres by 40 metres. The building shares architectural resemblance with European monuments such the Dôme des Invalides in France and the Völkerschlachtdenkmal in Germany but also contains African influences.
(Worldkings.org) Great Man-Made River is the world's largest underground network of pipes and aqueducts. It consists of more than 1,300 wells, most more than 500 m deep, and supplies 6,500,000 m3 of fresh water per day to the cities of Tripoli, Benghazi, Sirte and elsewhere.