The New Heaven and Earth

Someday, there will be a literal "end of the world," but it will not come through nuclear war or zombie apocalypse. In Revelation 21, we are told that God will create a new heaven and earth to replace the old ones that have "passed away" after the Millennial Kingdom is completed. For believers, that should be great news, since we are not citizens of this world anyway, but of the next. That new earth and heaven will be much different than their present counterparts, especially since the new creation will not include sin, nor will the new earth have any sea.