I don't think those Stargate, StarWars and Borg Startrek Spaceships above are really allien, cause they are occupaied from human in next generations, but...
...in Brazil many allien saucers landed to invade the cities... Some examples
Catedral Brasilia UFO Ship of Landing Pad... here with some Sentinels also to protect the ship and plan the invasion
http://2.bp.blogspot.com/_P3BvaDvVAy...rasilia_01.jpg
Some of them really flying inside already before losing the wings and dominating like human appearance...
http://www.geocities.com/thetropics/...edral_wide.jpg
In Sao Paulo they spread their UFO Saucers ships in middle of Ipirapuera Park, the huge central landing place inside the Human Pointers...
Oca, Panetario, Auditorium...
http://upload.wikimedia.org/wikipedi...Ibirapuera.jpg
Humans tried to stop the invasion with their weak force... but they couldn't avoid...
http://www.landliving.com/image/brazil_6.jpg
http://p3.focus.de/img/gen/T/q/HBTqi...en_r_467xA.jpg
Here human corps invaded go to the recycling...
http://www.brandworks.com.br/blog/wp...ibirapuera.jpg
The alliens sometimes after landed their sapceships, transform themselves in alike human politics to have the power of control in humans....
In Rio de Janeiro the spaceships landed as well... a borg inclusive
http://www.brasilienreise.ch/media/c...tana_wiki1.jpg
humans are converted ...
http://visualrian.com/storage/Previe.../60/324860.jpg
but in Varginha Minas Gerais, it is the worst, they are really everywhere spread, nobody can handle and support them anymore...
http://www.nanademinas.com.br/imagen...varginha25.jpg
http://comoeueratrouxaaos18anos.file...6/varginha.jpg
In Munich some spaceships landed as well
http://www.lifepr.de/attachment/2553...o_BMW+Welt.jpg
and transform some humans in big ones corps to killing in invasion...
http://cache.daylife.com/imageserve/...bj66K/340x.jpg