Once I saw a TV show about the challenges of constructing a deposit for nuclear waste that is expected to operate for thousands of years.
In this show, they mentioned that they did not want to use skulls to represent danger, because skulls are not seen as dangerous in some cultures (with "Dia de los muertos" as an specific example).
Major takeaway - you also can't say it's a place of death because an unscrupulous/desperate warlord might view symbols of death as ways to achieve power.
In this show, they mentioned that they did not want to use skulls to represent danger, because skulls are not seen as dangerous in some cultures (with "Dia de los muertos" as an specific example).