The geographical feature that connects the continents of Asia and North America is the Bering Strait. This narrow waterway separates Russia from Alaska and is approximately 85 kilometers wide at its narrowest point. The Bering Strait has historical significance as it is believed that ancient humans traveled across a land bridge known as Beringia, facilitating migration from Asia to North America. Today, the strait is an important ecological zone and a channel for marine life, reflecting the interactions between the two continents.