Found 20 Blocks CC0 textures in library

Castle Wall Slates

Castle Wall Variation

Concrete Brick Wall 001

Large Sandstone Blocks

Medieval Blocks 03

Medieval Blocks 05

Medieval Blocks 06

Paving Stones 125 A

Paving Stones 125 B

Paving Stones 126 A

Paving Stones 126 B

Paving Stones 127

Paving Stones 128

Rough Block Wall

Sandstone Blocks 05

Sandstone Blocks 08

Stone Brick Wall 001

White Sandstone Blocks 02

White Sandstone Bricks

White Sandstone Bricks 03