Pea stone leak

 

Leaky wall

 

The wide spacing between the retaining wall blocks has allowed the pea stone gravel to spill through.

 

Gravel pile

 

Big rock fence

The gravel piles at a construction yard are presented as a relaxed view 3d stereogram. 

How it spreads

Reach out and grow somewhere!

The vine of an unknown plant seeks fertile ground where it can take root.

p.s.  That may be a Japanese Knotweed?