What direction did humans have to travel to get from asia to north america

Across Bering land (today Bering Strait)

Explanation:

There is agreement that the Paleo-Indians originated in Central Asia and crossed the Bering land bridge between Siberia and present-day Alaska.

Humans inhabited the Americas until the end of the last glacial period between 16,000 and 13,000 years before the present.

 The details of the migration of Paleo-Indians to and through the American continent, including the exact time and paths of movement, are the subject of research and discussion.

The timing of the crossing of the Paleoindians across the Bering Land Bridge is under discussion, but is estimated to be between 40,000 and 16,500 BC.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )