Europe: Best SIM card to use across Europe?
I say Lycamobile as they cover pretty much everything. Have a look at their website.
Bogota: Local guide for a day
Monserrate is an amazing view point at more then 3100 m, was a bit hard for me at the beginning but really amazing, then La Candelaria was my favorite part of the city, really colorful, lots of little bars where people where dancing...