What's the difference between stalactites and stalagmites?

Stalactites are beautiful stone formations found on the ceilings of some limestone caves. Most look like large icicles, but some resemble draperies or straws with a hole through the middle. A stalagmite is similar formation rising up from the floor, something like an upside-down icicle. Sometimes, stalagmites and stalactites join to form columns or stone curtains against the walls of the cave. This video is a production of the Secret Files of Professor L. Otto Funn, a publication of World Book Publishing. www.worldbook.com

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