During my stay in Colombia, both Bogotá and Cali I had the chance to see some few interesting things, specially in BOG airport. First of at BOG airport Colombia Air Force have what I presume is a Air Force Base. I could see maybe between 5 to 6 Lockheed C-130 Hercules, the major part of them had a grey livery with Colombia markings but also at least 2 of them with a various shades of green, I also saw a CN235 from FAC. I noticed the Colombia Air Force One Boeing BBJ and a Fokker F-28 that is very active, at least I saw it flying in one of the days that I was waiting for my flight to CLO on the 8th. July in the morning. At the same time I saw a Mil MI-8 flying around, I don't know how many of these russian helicopters Colombia have but at Cali I also saw one flying around the city too. When I left BOG on the 14th. July I saw 2 C-130's taking off, one with grey livery and one with camouflage, and when I was taxiing I saw what I think it would be like an USAF Base in an area of BOG airport and I noticed at least 3 or 4 C-27J Spartans. I didn't see any fighters or any high performance airplanes from FAC, but I also saw retired in an hangar a FAC 707 with the titles covered but with basic FAC livery, I don't know if the plane is in process of beeing sold or it was just there to have a maintenance check.