Category:Subterranea

Subterranea refers to underground structures, both natural (such as caves) and man-made (such as mines). Some subterranean features are secret places(see also Category:secret places); most, like road tunnels, subway systems and sewers, are parts of public infrastructure.

Subcategories

This category has the following 3 subcategories, out of 3 total.

C

R

Pages in category "Subterranea"

This category contains only the following page.