European Garden Spider
The European garden spider, diadem spider, cross spider, or cross orbweaver (Araneus diadematus) is a very common and well-known orb-weaver spider in Europe and parts of North America, in a range extending from New England and the Southeast to California and the northwestern United States and adjacent parts of southern Canada.
The third pair of legs of garden spiders are specialized for assisting in the spinning of orb webs. These spiders also use them to move around on their web without getting stuck. These legs are useful only in the web; while on the ground, these legs are of little value.
Since this tends to be a passive animal, it is difficult to provoke to bite-but if it does, the bite is just slightly unpleasant and completely harmless to humans.
Source: en.wikipedia.org/wiki/European_garden_spider - 16.12.2011
European Garden Spider
Also the Spider spontaneously does not arouse enthusiasm with most of the human beings, such a picture shows:
This animal is made stunningly detailed, fancy and artful, too.