Internet connections at workplace and public Wi-Fi locations are generally filtered to country-level and ISP censorship. Some of the places would have harsh filtering but the good news is that it is possible to bypass these filtering and censorship and access websites that have been blocked.
It is possible to get around filtering and censorship with the help of a VPN or a Virtual Private Network. This is a network which tunnels and encrypts all the internet traffic between your computer and the other computer. Simply connect to a VPN in order to redirect all the traffic that is originating from your computer to that VPN.
For instance, if you connect to a VPN in the UK, your entire network traffic would be redirected to England before it comes out and the replies would also be sent to the server in England.
VPNs are not a foolproof way of bypassing internet censorships because the network operator, the ISP (Internet Service Provider) and the Government will be able to see that you are creating an encrypted VPN connection and using it to send data.
Therefore, if they want then they can have your VPN connections blocked but this happens in rare cases. A Virtual Private Network is great for bypassing an existing filtering system and accessing websites which are blocked or out of your reach.
When you have established a strong VPN connection, the filtering system that is existent in your workplace or country would no longer apply and you will be able to view what was barred before. However, you are going to need the help of commercial VPN connection services if you want to ensure that the configuration and use of the VPN takes place smoothly. You can find a comparison and test here.
If you have a good VPN service provider in place then half the battle is won already!