Crazy paving

Crazy paving is a means of hard-surfacing used outdoors, most frequently in gardens.

Paving stones of irregular size and shape are laid in a haphazard manner sometimes with mortar filling the gaps between.

[1] The design was half-way between mosaic and sectile and primarily used chippings of white and colored limestone.

[3] Crazy paving became popular during the 1970s and the use of just one type of stone is among the modern updates.

[4] Today, the hard-surfacing approach is also used as a means to recycle paving materials.