A visit to southern Chile, which is home to Mapuche Indians as well as German and Italian immigrant communities.

A visit to Salvador, Brazil, which is considered the center of African-Brazilian culture.

The story of Japanese peasants who relocated to the Amazon in the early 1920s. Their descendants have become successful farmers, raising tropical crops and pepper.

Panama City is visited. A pivotal shipping port, it is considered the Hong Kong of the Americas.

The excavation of the Maya city of Ceibal along the Passion River in the Petén forest of Guatemala is examined.

The ancient Maya city of Tizimín on the Yucatán peninsula is visited.

The Season 2 finale visits northern Oaxaca, Mexico, where the indigenous Chinantec people speak by whistling as well as talking.

Season 2 opens in Tultepec, Mexico, a small city near Mexico City that specializes in the production of fireworks.

California's Sierra Nevada is toured with tectonic specialist Eldridge Moores.

A wintertime visit to Yellowstone National Park.

The Reconcavo region of Brazil is visited. Included: preserving and restoring the Mata Atlantica (Atlantic Forest).

The Sierra Nevada mountain range in California is visited. Included: the origins of the range; its importance.

A visit to Lake Superior, which straddles the U.S.-Canadian border. Included: Isle Royale National Park.