Expanding Your Mind

Take the world's best courses, online,for free.

Think you’re a geography expert? Test your knowledge with BBC Travel’s GeoGuessr – the game that proves how well you know the world! The world’s a huge place – get exploring!

A free world-class education for anyone anywhere.  All of the site's resources are available to anyone.  Khan Academy's materials and resources are available to you completely free of charge.

MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.

We believe passionately in the power of ideas to change attitudes, lives and, ultimately, the world. So we're building a clearinghouse of free knowledge from the world's most inspired thinkers, and also a community of curious souls to engage with ideas and each other.