These points might help you elaborate. 
- we should be proud of our rich cultural heritage.
- it pains my heart to see people scribble their names and draw graffiti on the walls of monuments.
- there should a great  no. of guards to check such acts of vandalism.
- heavy fines and strict punishment should be meted out to people who dirty the monuments.
-we can`t afford to lose the rich culture and tradition associated with the study of historical monuments just bcoz some people lack civic sense.
- bt rules can be implemented only if people change their attitude and become responsible.