7 wonders of world

There are multiple 7 wonders, ancient, underwater, civil and new wonders of the world. The ones which most people are familar with are: Great Pyramid of Giza, The Colosseum in Rome, The Great Wall of China, Taj Mahal, Golden Gate Bridge, The Itaipu hydroelectric dam on the Paraná River, Chichen Itza, additional: Potala Palace, Old City of Jerusalem, The Aurora Borealis or Northern Lights, The Great Barrier Reef
I have been to Giza, Chichen Itza and Golden gate bridge. I will pursue the remaining, in my life time of travels.
http://en.wikipedia.org/wiki/Wonders_of_the_World
The seven wonders of the ancient world http://en.wikipedia.org/wiki/Temple_of_Artemis
I have been to the Temple of Artemis, which was located in Ephesus, now destroyed in 356BC.