A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
From a drawing in 'A Rolling Stone. A tale of wrongs and revenge', John Hartley, 1878.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
Fix and cc0 to get the tile this is based on.
Source SliverKnight
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Seamless tile drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
A version without colours blended together to give a different look.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
Prismatic Geometric Pattern Background
Source GDJ
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim