The Genesis account found in chapters 2-3 is an older myth than the one found in chapter 1 of Genesis.
Although the Genesis account found in chapters 2 and 3 is unique unto itself, there do exist certain similarities between parts of the Genesis narrative and other myths from other Mesopotamian cultures. For example, one will notice similarities between Genesis and The Myth of Etana; The Myth of Adapa; The Myth of Atrahasis; The Myth of Baal; and Gilgamesh.
For an interesting change of perspective, it is worthwhile to read the biblical Book of Ezekiel 28: 11 - 19, which offers a variant of the edenic garden story and reads - "Thus the word of the Lord came to me: 'Son of man, utter a lament over the king of Tyre, saying to him: Thus says the Lord God:
You were stamped with the seal of perfection,
of complete wisdom and perfect beauty.
In Eden, the garden of God, you were,
and every precious stone was your covering...
Of gold your pendants and jewels were made, on the day you were created.
With the Cherub I placed you,
you were on the holy mountain of God...
Blameless you were in your conduct
from the day you were created
Until evil was found within you...
Then I banned you from the mountain of God;
the Cherub drove you from among the fiery stones.
You became haughty of heart because of your beauty;
for the sake of splendor you debased your wisdom.'"