Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Prismatic Hexagonalist Pattern No Background
Source GDJ
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Continuing the geometric trend, here is one more.
Source Mike Warner
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
This seamless web background texture looks like gray stone. It's great for using as a background image on web pages, or on some of their elements. Anyway, I hope you will find use for it.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin