Seven Wonders of the U.S.A.

Let me hear your lists for what you think are the "Seven Wonders of the World - American-Styled". Your list can include natural or man-made phenomenons. For instance, as pictured, the Badlands would be representative of a natural wonder, but the Space Needle in Seattle or the Saturn V rocket would be evidences of man-made wonders. If you'd rather not be limited or have to meet a requirement, more or less than seven is fine. I just want to hear about wonders here in the good ol' U. S. of A. Also, lemme know about the wonders you've actually witnessed versus ones you have heard of second-hand. If you have extra time, split your natural wonders from your man-made. I think I'll do that.

My list (* - denotes that I've witnessed) -- not in order:

Natural
1) Grand Canyon *
2) Grand Tetons/Yellowstone National Park *
3) Yosemite National Park
4) The Badlands
5) Niagra Falls
6) Sequoia and King's Canyon National Parks (side-by-side, enough to be one)
7) Hawaiian Volcanoes

Honorable mention:
Everglades * (this won't make anyone else's list, but I'm a Florida boy at heart)

Man-made

1) Mount Rushmore
2) The Statue of Liberty * (seen from a distance)
3) Golden Gate Bridge
4) Hoover Dam
5) Seven Mile Bridge in the Florida Keys *
6) Empire State Building *
7) Kennedy Space Center * (for historical significance)

I know that I know that I know that you guys have lists where I'm gonna say d'uoh! And I know someone's gonna say, where's Disney? Maybe, after all is said and done, we can come up with the definitive list of Seven Wonders of the United States of America here for The Realm of Possibility that we can all somewhat agree upon. So shoot.