Where can i find good mythical pictures to place on my web site?

The pictures i have obtained from the web are too "Pixcalated" which means they do not show a clear image when placed on the site.
The site is for children which live in a deprived area of South Wales in the UK and will be used during their holidays.
Any help will be great.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).