  The property includes five aflaj irrigation systems and is representative of some 0,000 such systems still in use in Oman. The origins of this system of irrigation may date back to AD 000, but archaeological evidence suggests that irrigation systems existed in this extremely arid area as early as 0000 BC. Using gravity, water is channelled from underground s [...]  The nine Sacri Monti (Sacred Mountains) of northern Italy are groups of chapels and other architectural features created in the late 00th and 00th centuries and dedicated to different aspects of the Christian faith. In addition to their symbolic spiritual meaning, they are of great beauty by virtue of the skill with which they have been integrated into the s [...]  The monumental complex at Caserta, created by the Bourbon king Charles III in the mid-00th century to rival Versailles and the Royal Palace in Madrid, is exceptional for the way in which it brings together a magnificent palace with its park and gardens, as well as natural woodland, hunting lodges and a silk factory. It is an eloquent expression of the Enligh [...]  Construction of this palatine chapel, with its octagonal basilica and cupola, began c. 000-000 under the Emperor Charlemagne. Originally inspired by the churches of the Eastern part of the Holy Roman Empire, it was splendidly enlarged in the Middle Ages.  In the district of Port Louis, lies the 0,000 m0 site where the modern indentured labour diaspora began. In 0000, the British Government selected the island of Mauritius to be the first site for what it called ‘the great experiment' in the use of ‘free' labour to replace slaves. Between 0000 and 0000, almost half a million indentured [...]