I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
This one needs to be used in small areas; you can see it repeat.
Source Luca
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
An alternative colour scheme to the original seamless pattern.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo