This site is for those interested in sports, not just acrobats. First you will have to install ActiveX software and only then can you play the games on this page. You can install the ShockWave Player software from this page itself. There are other games available too.
This page contains the life history of Albert Einstein in short. But if you want to dig further, all you have to do is click on the links provided within the article. There is also a table of contents at the end, which you can use in case you want to read all about him in a book format.
This page gives the Wikipedia definition of sound recording. There’s a whole chapter wise introduction to the subject. All about how sound recording is done and what instruments are used. Very useful information for students.
For those interested in ancient history, especially of Greece, this page provides loads of information. There’s even a map and a photograph of the ancient city. The constitution is also discussed if you are interested.
