Cellar
Basement
cenotes
I believe one of the answers to that would be a catacomb, like in Cask of Amontillado
No it is known as the underground railroad as it was hidden from sight
1: Underground
The underground railroad happened in the 1830
In Britain, an underground room is a cellar.
In Britain, an underground room is a cellar.
they call it that because it was underground and its was a rail road
Americans call them 'The Subway', the British call them 'The Underground' or 'The Tube'.
The room underground in a house is commonly referred to as a basement.
underground , it is part of the underground railroad
a basement..? pretty simple.
Underground railways are known, in the USA, as the subway.
its a subterranean chamber ; a subterranean chamber is a underground room used to confuse robbers
sewerage
Dungeon
An aquifer is an underground accumulation of water.