Peacefulness, Calmness
This page is the CodyCross answer for the clue below from Greece, Group 665, Puzzle 4 (Historical Monuments).
Question is: Peacefulness, Calmness
and the answer is: SERENITY
Word Meaning:
SERENITY — The state of being serene; calmness; peacefulness.
Definitions from Wiktionary.