When Was It Built?

Built as the tomb of the pharoah Khufu. Took 26 years to build and was the worlds tallest human made structure for 3,800 years.

Sections of the wall have been built by successive dynasties. The best known sections were built by the Ming Dynasty in the 15th and 16th centuries. But the oldest existing section of the Great Wall was built by the state of Qi, beginning in 441BC.

Construction began in 1163, but was not completed until 1260.

Previous churches had been built on the site as early as 337 by Constantius II, and then again by Theodosius II. The current structure was originally a Christian church began in 532 under Emperor Justinian I.

Built by the Incas, roughly around 1450, believed to serve as an estate for emperor Pachacuti.

An original peripteral temple was built at the site in the 8th century BC, but was destroyed by floods in the 7th century BC. The marble temple which was to become one of the 7 wonders of the ancient world, was dedicated to the goddess Artemis, who was originally the matron goddess of the Amazons.

Believed to have begun shortly after Muhammad conquered Mecca in 630 and destroyed the traditional idols surrounding the Kaaba, ending it's polytheistic use. Renovations and expansions of the site have continued through history.

Constructed between 284 and 246 BC. Was the tallest freestanding tower for over 1300 years.

Was begun under the reign of Emperor Vespasian. Was deliberately built on the site of where the unpopular emperor Nero had built his palace complex.

Was originally built as a Hindu temple and took 37 years to complete. Is now a Theravada Buddhist temple and is the largest religious temple complex in the world.

Took 14 years to build. Is the largest preserved Royal Palace complex in the world.

Commissioned to be built by King Ludwig II of Bavaria, to serve as his private retreat, but he died in 1886, and it wasn't completed until 1892.

Carved into a 1 kilometre stretch of the Luo River, the grottoes contain over 100,000 statues of Buddha ranging from 1 inch to 17 metres in height. They were begun by the Northern Wei dynasty in 493 and continued by successive dynasties until 1127.