The constellation that is visible from anywhere on Earth is Ursa Minor, also known as the Little Dipper.

Here's why:

* Polaris, the North Star: Ursa Minor contains Polaris, the North Star. Polaris is very close to the Earth's celestial north pole.

* Earth's Rotation: As the Earth rotates, Polaris appears to stay in one place in the sky. Because of this, Ursa Minor is always above the horizon for observers in the Northern Hemisphere.

* Southern Hemisphere Visibility: While not as high in the sky, Ursa Minor can also be seen from the Southern Hemisphere, especially closer to the equator.

While it's technically visible from anywhere on Earth, it's harder to see from the Southern Hemisphere because it's lower on the horizon.