03
Name a type of structure built underground (man-made)
176 recorded answers
Get a hint
Both restrictions matter: underground and constructed by people.
A little more
Storage, passageways and shelter suggest different kinds of underground construction.
Spelling clue
A recorded 100-point answer begins with “D” and contains 8 letters or digits, excluding spaces and punctuation.
Reveal answers 176
- DeneholeOne in a Krillion100points
- ErdstallOne in a Krillion100points
- Archive vaultDeep Cut85points
- Artificial caveDeep Cut85points
- Auxiliary Units operational baseDeep Cut85points
- BarabaraDeep Cut85points
- Biogas digesterDeep Cut85points
- Canal tunnelDeep Cut85points
- Catch basinDeep Cut85points
- CistDeep Cut85points
- ColumbariumDeep Cut85points
- CryptoporticusDeep Cut85points
A denehole is a historic excavated chalk pit; an erdstall is a narrow underground passage. Natural caves do not meet the man-made restriction.
Open question & recorded answers