The Falkirk Wheel is a boat lift presented by Dundee Architects located in Falkirk (Scotland) at the end of a reinforced concrete aqueduct. Even though the lift looks really amazing, the most important objective was to build a boat lift capable of linking two historic canals. It was built for the millennium, and the whole structure had to illustrate the architecture and technology of it. Even though what you see is mostly concrete, there are 1'200 tons of steel, which had to be put together like a "giant mecano" with an accuracy of just 10 mm. The wheel can lift 600 tons, which corresponds to the weight of the water and a boat. Of course, what makes it very complicated is that the structure turns and therefore the stresses change the whole time. The steel sections were bolted together as these stresses could induce fatigue on normal welded joints. 15,000 bolts are used on the structure. Boats entering the Wheel’s upper gondola are lowered, along with the water that they float in, to the basin below. At the same time, an equal weight rises up, lifted in the other gondola. This works on the Archimedes principle of displacement. That is, the mass of the boat sailing into the gondola ...

It will be in what used to be a desert that we will see the largest fountain in the world. Of course, this $218 million project had to be in Dubai. Once again, Emaar Properties is responsible for the project. With its integral light and sound show, it is expected to become one of the city’s major tourist attractions (it should draw more than 10 million visitors per year!). The water will have 1'000 different expressions accompanied by music. 22'000 gallons of water will be pumped, and 6'600 lights and 50 color projectors will also be needed. The display will be 275 meters long, and the water will be shot 150 meters high.

Here is a nice compilation of some amazing american highway interchanges. [metacafe]http://www.metacafe.com/watch/823407/the_most_spectacular_highway_interchanges/[/metacafe]

Here are some pictures of amazing and particular constructions I found all over the net.