@ Mr. Rezaul Islam
if you want to add mosque, pond or cemetery in the google map maker then
1. Click ADD NEW > Add a place > (in category box type) Mosque > then enter the Mosque's name
2.Click ADD NEW > Add a place > (in category box type) Cemetery > then enter the Cemetery's name
3. Click ADD NEW > Add Natural Features and Political Boundaries > (in category box type) Pond > then click and draw the Pond's outline and save
Hope this will help . thank you :)