The U-44 was a German U-boat that served in World War I, part of the U-43 class of submarines.

A teddy bear flees from a giant monster with sharp teeth through a dense forest in this animated adventure.

Learn about the life and achievements of Bill Gates, from his childhood to co-founding Microsoft and becoming a philanthropic leader.

Watch Dwayne Johnson showcase his vocal skills in this entertaining video of him singing.

Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

习惯可以改变一个人，好的习惯让我们变得更好，坏的习惯让我们不由自主。如何养成好的习惯，改变自己？

Get a thrilling first-person view of a roller coaster ride, with sharp turns, steep drops, and high speeds.