It took me a whole week in Iran to find my first Death to America mural. I didn't see anything like this outside of Tehran, and even there, the anti-American murals were concentrated around the old US Embassy.

Death to America is on the gray flag just below the Iranian flag.

The flags say from top to bottom:
Allah Akbar - God is Great
La Allah Illa Allah - There is no god but Allah
Marg-bar Amreeka - Death to America
Ya-Hussein - Oh Hussein
(sorry, I can't make out the last one)

Along the top, "Every martyred is a flag of independence for Iran"