Determined by international vote (http://www.new7wonders.com/index.php) the new 7 world wonders are:

Chichén Itzá, Mexico
Christ Redeemer, Brazil
The Great Wall, China
Machu Picchu, Peru
Petra, Jordan
The Roman Colloseum, Italy
The Taj Mahal, India

That means I should probably start ticking off my list in Italy, which is close to home :)
What a quest… wish me luck!