5 Unique Buildings: Architecture at it's Strangest

I stumbled upon a post called "50 Most Strange and Unusual Buildings Around the World" on a site called 2expertsdesign.com

These 5 are quite interesting, probably would make you sick if you were drunk or give you a seizure if you were epileptic...

Krzywy Dom

Aqua Building, East View

Dancing House

Don Pastawiony na glowie (whatever the heck that means!)

Upside Down Building, City Hall, Tempe AZ

 I have to wonder... were they designed this way or do some contractors have some major explaining to do?  What would Mike Holmes have to say about this?