Which structure impresses you most?

i've never been to dubai but, i like khans, gehry and wrights work... i saw them in some documentary though. my favorite structure is the falling water of frank lloyd.

I love to travel and when I do so I am amazed by the creativity of great structures that are around the world. It that Dubai has some very interesting buildings and it even built a palm tree in the sea. Wow! The architecture that I love most are the white sail like opera house and the harbor bridge in Sydney. When I went there I noticed that opera house was plain inside but fascinating on the outside. It is now possible for people to do a closely controlled bridge climb as part of a group. I would so love to go there and climb the wonderful Sydney Harbor Bridge.