The Palm, Dubai
The Palm islands comprise approximately 100 million cubic meters of rock and sand. In total, 210 million cubic meters of rock, sand and limestone were reclaimed (through dredging) to create the islands, with 10 million cubic meters of rock used in the outer ring alone. The rocks used for both islands were transported from 16 quarries throughout the UAE and the materials used are enough to build a wall that could circle the world three times.
Completion date: September 24, 2008.