Toilet hanging 15 stories in the air may make you hold it in

If you go into this impossible-looking, glass-floored bathroom just to pee, you might be throwing up from vertigo by the time you leave. The stylish lavatory, built atop an empty elevator shaft in a Mexican penthouse, hovers 15 stories up with a clear view all the way to the bottom. That's a long way to fall, but the presumably very thick glass appears to be reinforced by some (rather skinny-looking) metal crossbeams. We're guessing this idea started out as a joke at architect Hernandez Silva's office, until someone figured out that it was actually possible.