It is April first and Google, for some time, has been playing prank on its visitors.
A website has claimed that this year's prank is called "Google Jail". The site has a screen-shot of the so-called Google Jail page.
I checked the page, but it showed a 404 Not Found Error message to me.
I hope it is not a prank on prank!
Anyways, that was a nice joke.
Happy April Fool's Day!