Bag End was situated at the end of Hobbiton. It was the home of Bilbo Baggins, afterwards of Frodo Baggins.
It was not some big palace, just a small (smial) hobbit-hole in the ground, but the main motto was comfort! "I feel that as long as the Shire lies behind, safe and comfortable, I shall find wandering more bearable: I shall know that somewhere there is a firm foothold, even if my feet cannot stand there again.” –J.R.R. Tolkien
No matter how much adventures they both did, they always had hope to return home safely, because of their love towards the Shire!