A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Parents receive 1 out of every 5 Valentines.
20
The 'Bicycle Tree', found near Brig o' Turk in Scotland, has consumed an entire bike that now hangs out of its bark.
17
The Basenji dog is the only dog that is not able to bark.
4