I've been looking at economics as a discipline, and what it does and doesn't take into account. Three of those factors are stability (which allows complex and advanced concepts to flourish, including advanced infrastructure), risk (and who bears it), and power relationships (again, who has power over whom).
Another example would be religious catacombs -- underground structures with religious significance, notably in Rome, Paris, London, and elsewhere. Again, the Church (large, stable, wealthy) established these.
Another aspect of London's underground infrastructure is its sewerage system, constructed in the 1850s, and one of the modern world's first sanitation systems. It was constructed in the face of a massive cholera epidemic (imported from India) which was claiming millions of lives throughout Europe and tens of thousands in England, and exhibiting a mortality rate of 10-20%, often killing within 12 hours. The mechanism (oral ingestion, gut development, fecal-oral transmission) had just been posited and demonstrated by John Snow and his famous map of cases identifying the Broad Street pump, contaminated by a nearby (3 foot distant) septic tank which was leaking into it.
https://en.wikipedia.org/wiki/London_sewerage_system
There are many histories of this, one of the better ones I've encountered is James Burke's "The Day the Universe Changed", episode 7, "What the Doctor Ordered". The entire programme covers the emergence of the modern medical and public health system. The portion specific to the cholera epidemic and the infrastructure effects starts at 19 minutes in:
http://fixyt.com/watch?v=wM2UZ26b1EQ
The fascinating part is that much of what's now considered to be "British nature" (cricket, stiff upper lip, jolly good) emerged as a consequence of this epidemic as well.