Duplicate Site with New Database

Hello all. I have wordpress site that I have customized and really like. I would like to duplicate this site to a new domain and change out the pages, photos, etc – but leave the structure intact. I want to keep the original site and database as is, no changes because it is still functional and we use it everyday.

I think this will be much easier than reloading the theme and going through all the customization again, much of which I do not even remember. My question is how do I do this and get the info updated to a new database?

Many thanks!!