The official 7 wonders of the ancient world list was compiled in the Middle Ages, after most of the 7 wonders had toppled. Only the Great Pyramid at Giza has survived. Wonders of the ancient world were mentioned first by the historian Herodotus and then by Callimachus, librarian at Alexandria. In about 140 B.C. the Greek writer Antipater of Sidon wrote a poem listing the seven wonders, which is Antipater's main claim to fame.
The list is in chronological order of when the structure was built.
1. Great Pyramid of Giza
Michal Charvat. http://egypt.travel-photo.org/cairo/pyramids-in-giza-after-closing-hours.html
The Great Pyramid of Giza, in Egypt, was build around 2650-2500 B.C. The oldest of the 7 wonders and the only one still standing, the pyramid was built for the Pharaoh Khufu of the 4th Egyptian dynasty.
2. Hanging Gardens of Babylon
The Hanging Gardens of Babylon were created around c. 600 B.C. if they ever existed. The hanging gardens of Babylon were destroyed sometime after the 1st century B.C., probably by earthquake.3. Temple of Artemis at Ephesus
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The statue of Artemis and her temple at Ephesus were built around 550 B.C. The temple of Artemis was deliberately burned down by Herostratus in an attempt to gain fame in 356 B.C. supposedly when Alexander the Great was born.
4. Statue of Zeus at Olympia
Ryan Vinson http://www.sxc.hu/browse.phtml?f=profile&l=raien
The Statue of Zeus at Olympia was built around 435 B.C. It succumbed to fire in the fifth or sixth centuy A.D.
5. Mausoleum of Halicarnassus
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The Mausoleum of Halicarnassus was commissioned for Mausolus by his wife Artemisia and finished around 350 B.C. It was destroyed by earthquake in the 14th century, but some of its ornaments are in the British Museum.
6. Colossus of Rhodes
The Colossus of Rhodes was built around 292-280 B.C. It was destroyed by earthquake in 225 making the Colossus of Rhodes the shortest lasting of all the 7 wonders. The statue was of the god Helios.7. Pharos Lighthouse at Alexandria
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The Pharos lighthouse was erected by about 270 B.C. The lighthouse in the harbor of Alexandria stood until 14th century earthquakes destroyed it. In 1994 archaeologist found blocks believed to be part of the lighthouse.
