Wondering about Pindar

Numerous secret tunnel systems have been built, first during the Second World War as a precaution against conventional bombing and later to ensure that government would survive after a nuclear holocaust. The most recent construction under London are complexes collectively known as Pindar, which are thought to have been completed in 1994 at a cost of £125 million. PO Scheme 3245, which was at least 100ft deep at its shallowest and which runs from Whitehall at least as far as Holborn, a mile away, may have been incorporated into Pindar.

For those interested

Empire and the City - E. C. Knuth

http://anonfile.com/Sfoc44ebb4/empire_of_the_city.pdf

But "Empire City is also a nickname for New York City"

>>1454268

wow!! now I know more than before ..

>>1454406

>The date commemorates a historic battle in Rome (sauce below) and the Pope's escape on 5/6/1527 through secret tunnels in the Vatican walls.

No secret tunnels in Vatican; the Pope used the "passetto"

https://en.wikipedia.org/wiki/Passetto_di_Borgo

>>1454567

Density of space: "It averages roughly 1 atom per cubic centimeter, but density as great as 1000 atoms/cm3 and as small as 0.1 atom/cm3 have been found."

Chaisson, Eric, & Steve McMillan. Astronomy Today. New York: Prentice Hall, 1993: 418.