|Urbexers are so sexy|
|No longer seen as safe|
This is of course because underground places are also seen as places of danger: both objectively in terms of health and safety legislation being extraordinarily demanding around work in enclosed spaces, and subjectively in terms of what we think will happen. Subways (and who on earth had the lack of taste to call that one 'Gothic Subway'?) are one of the things which most embody disastrous 1960s town planning, because of their notoriety for having hiding places allowing muggings and rapes to go on there.
The danger implied in underground extends to death: traditionally the underground was the place for the dead, it was where dead bodies were disposed of, it was seen as a haunt of the dead and undead. Most literally this is found in the idea of catacombs: if anyone fancies a trip to Paris there is a whole movement of 'cataphiles' who explore (at great personal risk and with great opposition from the police) the catacombs where there are often literal piles of bones and skulls, where they have been placed as the city's cemeteries have been cleared of old burials.
|Underground takes you to different times and places|