Flying cars aren't just science fiction anymore. Woburn, Mass.-based Terrafugia Inc. said on Monday that its prototype flying car has completed its first flight, bringing the company closer to its goal of selling the flying.

The vehicle - dubbed the Transition - has two seats, four wheels and wings that fold up so it can be driven like a car. Last month, it flew at 1,400 feet for eight minutes. Commercial jets fly at 35,000 feet.It's expected to cost $279,000. And it won't help if you're stuck in traffic. The car needs a runway.

The world's tallest treehouse, located in Crossville, Tennessee.Builder Horace Burgess took 11 years to build the tree house.Horace, who lives in the 10 story wooden house, said he begun the build in 1993.The enormous treehouse is a whopping 10,000 square feet but only cost Horace a reasonable $12,000 thanks to his thrifty use of recycled materials.

There are six trees supporting the tree house and it tooks 2,68,000 nails to put everyting together.Inside there are spiral staircases, a sanctuary, a choir loft, a basketball court, and countless rooms, walkways and balconies.

From three-wheel electrics to mini-semis, here are the ten most bizarre collector cars selling at this week's Barrett-Jackson auction.
With 1,300 vehicles set to sell at this week’s Barrett-Jackson Collector Car Auction in Scottsdale, Ariz.The managed mania of collectable cars will hit its annual high. Thanks to a growing number of million-dollar models and a penchant for publicity.

Barrett-Jackson draws more gawkers than any other such event. Thanks to its open doors for any seller willing to forgo an auction reserve, it also offers a welter of weirdos. Here’s our pick for the most outlandish, starting with a 1998 Corvette with $90,000 invested in a stroked engine, nitrous and a paint job that looks like a fiery rash.