In the United States, there are many cemeteries specifically devoted to veterans, maintained by the military, such as Arlington Cemetery[?]. Most have various rules regarding what must take place in order to be interred there.
The following are the religious emblems available for gravestones.
... Tasman, (1603-1659), discovered Tasmania and New Zealand
Luis Vaez de Torres[?], sea explorer
V
Giovanni da Verrazano, (died 1528), sea explorer
Amerigo ...