Galerie
Appearance
An image gallery is created by using the <gallery> tag in a wiki page. This is nothing more than a nice framing around a bunch of inline images. The images doesn't "belong to" the gallery and an image can appear in any number of galleries.
See the section mw:Special:MyLanguage/Help:Images#Rendering a gallery of images.
Kuckt och: mw:Extension:Gallery2wiki.