Help with a structure to choose?

I have to write a proposal about a structure I would like to visit in order to research how it stays in place and is anchored down. Structure as in a bridge, building, etc. I want it to be something a little lesser known not like the St. Louis Arch, golden gate bridge or anything like that, but i want it to be known enough that there is information about it online that would help me find out more about it. It can be located anywhere in the world, and I would prefer it were something that looked cool and you possibly had to wonder how it stays up or it just looks really cool is Ok. Any help on ideas would be great.Help with a structure to choose?
For new construction, the Oresund Bridge from Denmark to Sweden.

http://www.roadtraffic-technology.com/pr鈥?/a>



Or the Burj Dubai (not done yet)

http://www.emporis.com/en/wm/bu/?id=burj鈥?/a>



Or Petronas Towers

http://www.greatbuildings.com/buildings/鈥?/a>



All would be fascinating!Help with a structure to choose?
Two come to mind for me...the first is the Charles Bridge (Karlov Most) in Prague, Czech Republic because it is SOOO old!



Another is also in Prague, and it's known as the Dancing Building, or the Fred and Ginger building. Links are in the source