I would say that a bamboo forest has the thinnest trunks.
Yes, it clocks in at .44" thick and is the thinnest smartphone in the world. However it is not the thinnest phone
The thinnest country in the world is North Korea. Other thin countries are Cambodia, Burundi, Nepal, and the Democratic Republic of the Congo.
Crust
Crust
The Nile River
crust
Amazon River.
22 pounds
Valeria Levitin
"What Men Know About Women."
Nile River