Enlarged horizontal dots flying at high altitude over Lima, Peru skyes for about 5 minutesDate: November 10, 2013 Time: around 4:30 pm Angle: 45 to 60 deg from normal Altitude: 300 ft over sea level Facing: North East Condition: Sunny Crystal clear sky, no clouds and the moon could be seen First I saw a white sort of enlarged horizontal dot travelling from SE to NW direction, which I thought did not have the physical characteristics of a commercial or military jet aircraft, nor it wasn’t on the regular path to Lima’s International airport approach only a few miles west from my standing point, nor an enroute plane to other destination due to the altitude it seemed flying on was lower. The whole thing didn’t last more than 1 minute as a building on my way obstructed the sight. I expected for the object to pass the building, as an aircraft should, but it just didn’t happen or it may have changed direction staying on a North bound course where this building didn’t let me see any more of it. I came inside the house wondering and commented the sighting with family members.As I kept wondering, not over five minutes later I went outside again and started staring at the same point I saw this for the first time, the I turned myself slightly to my right and saw about four or five objects of similar characteristics as the one described above travelling in a sort of formation from SE to NW direction, 2 above and 2 to 3 others below. Only this time the sighting took almost 4 to 5 minutes to reach the same building and again by the time they reached the building, they just didn’t pass it and the objects disappeared.I stayed at the same spot for over 30 minutes looking to see if any of these objects appeared, but they didn’t. On the mean time I got to see two jet aircraft (both seemed an airbus 320 or boeing 737) flying on approach to Lima’s International airport, a low altitude flying police helicopter and a balloon that may have been lost by a kid. This provided me the altitude, speed, and flying pattern perspective of this type of flying devices and what I saw differed totally.I’m 41 years old with an engineering background, have participated in sale and installation of Navaids systems for civil aviation such as a complete Northrop Grumman ASR 12 primary and secondary radar system, ILS, VOR, DME’s, etc. I have travelled abroad and attended airshows all over, had the opportunity to see acrobatic formations made by such prestigious teams as the Blue Angels, and familiarized with almost all of the civil aircraft currently in service from small Cessnas to A380 which I recently saw approach in Miami, and this is something that really differed from any other thing sawn before in my life.