Frescoes

6 clues
Murals
Works by Giotto
Pompeii paintings
Paintings on plaster
Sistine Chapel features
Some works by Michelangelo
Similar answers:
Afresh
Airfreshener
Airfresher
Albertfresco
Alfresco
Alvinfresco
Aquafresh
Asfresh
Asfreshas
Asfreshasadaisy
Breathoffresha
Briefrestperiod
Calicoes
Chairfreshener
Chapelofrest
Chicoescuela
Coes
Daysofrest
Decoes
Dontbefresh