1. The Great Lakes: The massive Great Lakes (Superior, Michigan, Huron, Erie, and Ontario) were carved out by massive glaciers during the last Ice Age. The glaciers' erosive power scoured the land, creating depressions that filled with meltwater to form the lakes we know today.

2. Glacier National Park, Montana: The dramatic peaks, valleys, and lakes of Glacier National Park were sculpted by the movement of glaciers over thousands of years. The park is still home to several active glaciers, though they are shrinking due to climate change.

3. Yosemite National Park, California: While Yosemite is known for its towering granite cliffs, these iconic features were actually formed by the erosive power of glaciers. The glaciers carved out the Yosemite Valley, creating the unique landscape we see today.