Enter a clue or pattern or both:
The Clue
Single-slab stone monuments (9 letter answer)
The Answer
MONOLITHS
Tags
Notes
The answer MONOLITHS is so rare that it appears less than once every 2500 puzzles.
Related Clues
Obelisks, e.g.
Easter Island mysteries
Definition
MONOLITH as a noun:
1. a single great stone (often in the form of a column or obelisk)