Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Just like the black maze, only in light gray. Duh.
Source Peax
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Similar to original, but without gaps in between the arrows. This seamless pattern was created from a rectangular tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo