Where/when: Brisbane, Australia: January 26 (Australia Day)
If being surrounded by hundreds of scurrying cockroaches isn't your idea of fun, then you're better off avoiding the World Championship Cockroach Races. Roach racing events include the sprint and the steeplechase - and thousands of bug lovers turn up each year to cheer on their favourite parasites.
Freakiness factor: High - Imagine seeing thousands of drunken Aussies worshipping an insect you usually trample on. Barmy!
22,000 people agreed to clean toilets for WiFi because they did not read the terms.
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Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.