Your car is well tuned if you can stop on me. I am extremely common and abundant when I am a dozen.

Dogs famously do it, Humans wear it, For style or through misuse, I become holy.

I have legs but don't walk I hold you steady

I swallow dough and breathe out heat, A metal mouth where meals are sweet. I don’t eat, yet I help you dine; What am I, warm and built to shine?

Towering over edge, For those who drag and dredge, A monument to focus aim, But don’t go up the ledge. Spinning beams beckon, A landmark taming dark. Known to have a keeper, Who gives the saving spark.