Just browsing and came across an Article about a UFO incident that happened in the streets of London in 1955 where witnesses claimed that a UFO landed in their street..
Rather unusual in comparison to the usual landing sites.
http://www.ufoevidence.org/cases/case1054.htm
I came across this blog as the owner had done a video about the incident... and found a image that shows different shapes of UFOS..
If the image does not show on the immediate link..Its close to the end of the page about 90% to the bottom.
http://hpanwo.blogspot.co.uk/
On the link below was a Photo of what was suggested may had been a photo representing the Roswell Alien.. about 20% down the page.
http://hpanwo.blogspot.co.uk/2012/04/pre-roswell-roswells.html