6 runs to do if a marathon is not enough for you
It is crazy enough to run a marathon. Some people would even say it is crazy to run at all. There are a distinct few who will say "city marathons bore me, it goes all in a flat circle for 3 to 4 hours, nothing to see, nothing special to do". If you are of the first group, here is your shock and awe therapy that there events which are even more hideous than a marathon. To the second group I say: Add these to your bucket list.
The mount Kinabalu International climbathon in Malaysia (33km)
The mount Kinabalou race was established in 1987 in malaysia and is the race to the top of the highest mountain in Malaysia at 4095.2m. The elite race is a 33km course to the top of the mountain and back, current course record at 2:11. If you want to know more visit their website.
Comrades ultra marathon in South Africa (90km)
If you come from a moderate climate like me (Germany, Ireland) why not go in to the scorching heat to run one of the most known Ultra marathons in the world, the comrades in South Africa. The race has a 12 hour cut off and is held in May. Current records are at 5:20 for the down and 5:24 for the up route for men run in 2007 and 2008 by Leonid Shvetsov. If you wanted to enter the race you can do so here. Seems to be pretty challenging.
Pikes Peak Marathon in the USA (42km)

Everest Marathon in Nepal (42km)

Marathon de Sables (250km)

Dolomites Vertical in Italy
The Dolomites vertical in Italy is one of the steepest races in the world with a total distance of 22km. The current record for the ascend stands at 32:50 minutes. The track is deemed to be one of the most beautiful verticals in the world. I personally already curse when I just have to run up a bridge when I am training, never mind a whole mountain range like the dolomites. If you wanted to give this one a try, here you will find more information.

