A flower that smells like carrion--its pollinated by flies-- and grows up to 10 ft. tall. Currently blooming (late June 2012) at Franklin Park Zoo in Boston! See the fantastic article about them at U of Wisconsin's website below, which includes information about their thermal photos of the inflourescence (flower) which I show here.
Scientific name: Amorphophallus titanum
http://www.news.wisc.edu/titanarum/facts.html