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Brass owl at Panoply Books

Brass owl at Panoply Books

This drawing depicts the way in which the progress of the pneumatic tunnels in New York built in 1870 were measured and mapped.  The two men underground sent up a series of pipes to the surface, under the very paving stone of Broadway, where a surveyor would make the spot where the pipes met the surface.

This drawing depicts the way in which the progress of the pneumatic tunnels in New York built in 1870 were measured and mapped. The two men underground sent up a series of pipes to the surface, under the very paving stone of Broadway, where a surveyor would make the spot where the pipes met the surface.

5 | The Lowline, New York's Revolutionary Underground Park, Says Let There Be Light | Co.Exist: World changing ideas and innovation

The Lowline, New York’s Revolutionary Underground Park, Says Let There Be Light

5 | The Lowline, New York's Revolutionary Underground Park, Says Let There Be Light | Co.Exist: World changing ideas and innovation

Odessa "A fantastic tunnel"

Odessa "A fantastic tunnel"

In a tunnel -- like the one where Dom lives in LA underground -- Daystealer stealersaga.com

In a tunnel -- like the one where Dom lives in LA underground -- Daystealer stealersaga.com

Undercity Series5

Undercity Series

Undercity Series5

Adventurers Steve Duncan and Erling Kagge explore subterranean New York City. Their flashlights shine on an abandoned train in Brooklyn's Ea...

New York Underground: Exploring City Caves And Catacombs

Adventurers Steve Duncan and Erling Kagge explore subterranean New York City. Their flashlights shine on an abandoned train in Brooklyn's Ea...

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