This “hidden swimming pool” is the coolest indoor swimming pool that I’ve ever seen. The Hydrofloors swimming pool is covered by a platform floor when not in used and the when the platform is removed (moves downward), the space turns to a swimming pool. I love the idea because the space can be used for other purpose when you don’t need a swimming pool, so clever!

Hit the jump to see how the floor transforms to swimming pool.

We have seen the world’s ulgiest buildings, it’s time to see something wonderful, the 10 “Most Beautiful Buildings” in the world. Four out of these ten buildings are from America, sounds great! If you think there are other awesome buildings that should be listed here, share with us in the comment.

1. Tancici Dum in Prague

Tancici Dum (Dancing Building), completed in 1996, was designed by famous architect Frank Gehry. It looks like a dancing couple, and some people call it “drunkard building.”

For the puzzler enthusiasts, the Crossword Puzzle House in the Ukrainian city of Lvov, is a “place” where they must visit at least once in their life time. The giant crossword puzzle is placed on a side of an apartment building in Ukraine, which is also the world’s largest crossword puzzle.

Ice House Detroit is an architectural installation and social change project currently taking place in Detroit. A group of artist-activists is freezing a house in Detroit to bring attention not to the cold winter we’re having but to the ails of Detroit’s housing industry.

Hit the jump for 2 more photos and a video clip of this Frozen house.

Archipod attempts to reinvent the concept of a traditional home office for SOHO group by bringing modern workspace and a peaceful working environment straight to your garden.

In fact, there is more to working from home than just convenience and lifestyle improvements, there can be huge benefits to working in an Archipod garden office, including: