Vine tree bearing fruit and cross section of the root system deep underground
In 1914, the Underground Electric Railways Company of London advertised the opening of the Charing Cross, Euston and Hampstead Railway extension to Embankment tube station. This detail from the poster shows a cross-section of the land under Charing Cross railway station including the new tube line and other tube lines already serving the station.
Temples of Humankind - cross section by Damanhur, Federation of Communities, via Flickr- my dream to visit the Temples of Humankind one day
Concept art for the underground city of Shambala. Seen here is a cross section of the great pit, a main street of sorts, that rises up in a continuing effort to reach the surface and reclaim it after thousands of years of living underground.
a sectional view of the new york public library
New Mountain City 6,000 plus feet Above ground level. to 300 feet below surface Subterranean High-End Home - Underground Custom Homes and Inner City., that Doubles as subterranean Bomb Shelter / Bunkerr. Custom Underground Engineered Bomb Shelters - Bunkers by DeLagostti Industries 2013