Thanks for the clarification. I meant that as two suggestions. I know all too well how long that long long road between Timbuktu and Djenne is…Alas…
I’ve driven to Djenne, but it was my impression that there is no “road” as such to Timbuktu. I know it’s possible to drive it, but that a guide is probably advisable. I also drove to Bandjiagara in Dogon country, across the fields and through the dry washes. We had a guide for that as well.
I haven’t seen the LHC in Europe mentioned yet, so I’d like to mention the LHC in Europe.
I dont want to repeat those wonders already given even though I agree with most of them(Though the N.Y.Subway mystifies me,the London tube is the biggest of that item in the world) so here are some that Iam the first to nominate.
NewGrange in the R.O.Ireland which is I think probably the oldest manmade structure in the world.
Tower bridge in London.
The Houses of Parliament in London.
Hadrians Wall
Westminster Abbey
The White Cliffs of Dover
The Eiffel Tower/Arch De Triomphe
The Chateaus in the Loire valley
Pompeii and Herculaneum.
The Leaning Tower of Pisa
The Rock of Gibraltar
The rock inside Temple mount,The Church of the Nativity,Site of the Cruxifixion and the Dead Sea in Israel
Mecca
Meteor Crater
Historic Washington(W.House,Cap. building and assorted monuments)
The Las Vegas Strip
The Presidents carvings in N(?)Dakota
NORAD under Cheyanne Mountain
Cape Canaveral
Gracelands(I really,really am not any sort of an Elvis fan and think the place itself is tacky but it is a place of pilgramage for millions)
The Pueblo structures in the S.W.
The Amazon river/rainforest
I’ve cheated on the numbers but even if some of them aren’t awesome in scale or age or evento my personal prefernce i believe that they are all significant to a great many people around the world.
Mt. Rushmore is in South Dakota. Just, you know, FYI. 
Todaiji in Nara, Japan. The daibutsu (big buddha statue) there is more impressive than Kamakura IMO, and the temple includes some truly magnificent wooden buildings and big-ass gates.
I’d include kinkakuji (golden temple), in Kyoto, but it’s really not that great on a rainy day.
Cheers mate I stand corrected
What this thread needs is a few images, so for Europe one recent candidate has to be the Millau Brdige in France.
http://www.funonthenet.in/images/stories/frontend/Millau_Viaduct/millau-viaduct.jpg
How about the Stelvio Pass ?
Victoria Falls
http://yoviajando.iespana.es/Zambia-Zimbabwe/Victoria_Falls_Aerial_View.JPG
Rice terraces at Banaue
http://www.panoramio.com/photo/4487894
Lake Toba,
This is a large lake, but the kicker is that this is a caldera, and home of the largest explosive event that mankind has ever witnessed.
If you search for images you can get some pretty spectacular stuff.
That was me suggesting the NYC subways, so I’ll explain. To me, it’s an amazing system and its construction was an engineering marvel. It’s a multi-track system, with locals and expresses. It operates 24 hours a day, 365 days a year. 24 hours a day! That’s what I want from public transit - no having to leave the party because the last train leaves at 10 PM or anything.
I never even thought about whether it was the biggest in the world or not. If we’re after just the biggest one, how do we define biggest? The one that has the most stations? Largest geographic area served? Most miles of track? Most route miles? Most trains? Most passenger cars? Most passenger boardings? Most passenger-miles served? The broadest track guage (“I got me a w-i-i-i-d-e stance”)*? There are probably other possible measurements, too.
Anyway, the two systems are in different divisions, so the committee could decide that both are wonders (or neither, for that matter). Who’s on the committee, anyway? And when and how do they do the decidin’?
- Yes, I realize that the US and England both use standard guage.
I took a motley combination of bush taxis, cars I flagged down, luxury buses, market trucks, cargo boats and other horrible forms of transit. Timbuktu to Mopti is a pretty tough drive- about eight hours of it is unpaved and I got suprised by a night sleeping on my prayer scarf on the banks of the Niger waiting for the ferry to leave. Good times, good times.
At least you didn’t fly there via Air Mali, which would truly be taking your life in your hands. My wife did that, landing in a sandstorm in Timbuktu. It was the most frightened she’s ever been.
Now back to your regularly scheduled program.