Portal in the Sky in Porto, Portugal

Interesting city name, where this event occurred.

Source image at:

http://maps.google.pt/maps?f=q&source=s_q&hl=pt-PT&geocode=&q=porto&sll=39.639538,-7.849731&sspn=12.006607,19.753418&ie=UTF8&hq=&hnear=Porto&ll=42.080069,-7.711201&spn=0.022742,0.038581&t=h&z=15&

Portal in Porta, Portugal