Found it at old fortifications (walkway Can Pastilla to Playa de Palma); painted on the ground. Looks like Halflife, doesn''t it? :-)

Camera Maker:	Konica Minolta
Camera Model:	DiMAGE Z6
Shutter Speed:	1/160 sec
Aperture:	f/7.1
Focal Length:	12.9089355469 mm
ISO Sensitivity:	50
Time Taken:	2010:02:21 11:37:49
Exposure Compensation:	0 EV
Metering Mode:	Multi-Segment
Flash Fired:	No Flash
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