What structure should go on a new list of seven wonders of the world?

Asked at Massachusetts Street on March 14, 2007

“The Petronas Towers in Kuala Lumpur - the ones with the sky bridge connecting them. They're among the tallest buildings in the world.”

“The first thing that comes to mind is the St. Louis Arch. It's the way it was built that makes it so impressive.”

“I would say the Wailing Wall in Jerusalem, because it means so much to so many people.”

“Machu Picchu. Besides being a beautiful representation of a forgotten culture, the location in and of itself is awe-inspiring.”