Austrian stuntman Felix Baumgartner wowed the world with his 24-mile free fall dive from space back to earth recently.
The daredevil isn't adverse to a a lofty dive - he previously lept off the Christ statue in Rio de Janeiro.
So, to celebrate, Felix's record-breaking dive, here are 11 other randomly extreme sports.*
*Do not, under any circumstance, try these at home. Unless you're crazy, of course.
11. Volcano Boarding
Also known as Volcano Surfing, this sport is for those who find normal waves too cold and boring.
Thousands of travellers head to the foothills of Nicaragua's Cerro Negro each year in protective jump suits, knee-pads and helmets, and can reach speeds of up to 50mph.
10. Train Surfing
Definitely one of the most dangerous extreme sports (with several people killed and injured each year) and tecnhically it is illegal.
Not forgetting the fact it is brain-oozingly stupid.
The idea is to jump on passenger trains and ride them for as long as possible. Mostly popular in Germany and South Africa.
9. Crocodile Bungee
Like normal bungee jumping, only over a body of crocodile infested water.
And it's not all fun and games, though, this Australian jumper's chord broke and she plunged head first into Chez Croc.
8. Cliff Diving
You always see kids doing this in movies set in luxurious locations, but Cliff Diving is also an acrobatic extreme sport.
It's like Olympic Diving diving meets Country File, where participants are marked on the fluidity of their dives.
And, you know, not hitting their heads on massive rocks in the water. That always helps.
Like tightrope walking, only with a slack rope.
The highest slackline on record was walked by Christian Schou on August 3, 2006 at Kjerag in Rogaland, Norway, which was 1,000 metres high.
6. Flaming Football
One for the thick skinned. Literally.
Students in Indonesia play this game to celebrate their birthdays (saves on candles, I guess).
They coat a coconut in fuel, light it and then play a small sided game of football. Crazy!
5. Elephant Polo
Like normal polo. But on elephants.
Mainly played in India, the sport has it's own federation (the World Elephant Polo Association) and there are often tournaments held.
Be warned, though; in 2007 an elephant went on a rampage during a game, injuring two players and destroying the Spanish team's minibus.
4. Freestyle Powerisers
Also known as Powerblocking, this sport is like parkour but with giant, robotic leg attachments.
The stilts give participants the chance to jump higher, as they try to launch over urban furniture.
Check out some more examples here.
3. Underwater Hockey
Does exactly what it says on the tin; like field hockey only underwater.
Invented in Britain in the 1950s as a way for hockey players to keep fit during the off-season in the winter.
It has become so popular that some countries have formed their own teams and leagues.
2. Chess Boxing
Thought boxers were big, dumb brutes? Think again.
Chess boxing combines the sheer force of boxing, with the brain teasing skills of chess.
Participants play 12 rounds (six each of boxing then chess) to decide who is the winner.
1. Extreme Ironing
This is our favourite. Brilliantly billed as "the latest danger sport that combines the thrills of an extreme outdoor activity with the satisfaction of a well-pressed shirt".
Invented by a man called Phil Shaw from Leicester in 1997 who took his weekly chore rock climbing one evening, 'EI' sees people try to flatten out creases in the most bizarre places.
These include in a canoe, underwater; in the middle of the motorway, whilst parachuting and lots more.