|NOTES||Subterranean passages, particularly roadways excavated under ground, under a hill or mountain, or beneath the bed of a river to allow passage of vehicles, trains, pedestrians, or animals.|
|HIERARCHY||Objects Facet>Built Environment>Single Built Works>transportation buildings>tunnels|
Search works with
Search for works of art which specifically
contain the subject "tunnels" subject or works within the subject tree Infobox:
equal to "tunnels" or that is a sub-subject of "tunnels"
Searching the subject tree for "tunnels" would return results containing subjects like:
tunnels (with subject tree: Objects Facet>Built Environment>Single Built Works>transportation buildings>tunnels)