Where are the globes in Pikmin 2?

The first half of the globe, the Spherical Atlas, is found at the bottom of Emergence Cave, the first cavern you enter. It is located in the Valley of Repose and allows you to travel to the Awakening Wood.

The second half of the globe, the Geographic Projection, is located in the Awakening Wood, across a pond from where you start. This half allows you to travel to the Perplexing Pool.

Note: Both of these take the equivalent of 101 Pikmin to carry. It is not possible to have more than 100 Pikmin in the field at once, so you will need at least one purple Pikmin to carry them, because purple Pikmin count as 10 Pikmin when carrying objects.