Hi

If you wish to travel to UK, you have to go to the UK embassy and apply for a visa. Apply and attach the following documents taking into consideration the visa type, especially since the visa depends on its type and requirements which vary according to the purpose of the trip, if the purpose is for visit or tourism, the requirements shall be mentioned below, however, if the visa is for work or permenant residence, you are required to obtain a prior work contract invitation and if you wish to get a study visa, it also requires a university admission in UK. Go to the embassy and attache documents as following.
1- Valid passport for no less than six months
2- Clear personal photos as the photo in your passport.
3- Submit a bank statement showing the recent actions made on your account in the recent three months to ensure the expenses in case of travel purpose.
4 - Book flight tickets one-way.
5- Hotel reservation
6- Health insurance policy.
Then, you shall pay the fees prescribed on the visa, which is estimated by the embassy on time. Then, you will be informed of the response decision from the embassy.