The "church" is not an "it". The true church is a spiritual house - a building made up of every believer in Jesus Christ as each one is a "living stone" and Jesus is the cornerstone. (see I Peter 2:5). We are God's fellow workers; we are God's field, God's building (I Cor. 3:9). Each local assembly is a family of faith come together in edifying fellowship, learning, sharing, praying together and offering spiritual sacrifices of praise for what He has done for us.
Where is it? It is everywhere where genuine faith is held and the rule of faith is taught. It can be even two or three gathered together because Jesus is in the midst. Where I think people get hung up is in thinking any one denomination is "the" church. It can't be because we know that the TRUE bride of Christ, His body, is made up of all believers who will be with Him for eternity. Every local physical church has saved and unsaved within it. The faith that binds us together is the same faith that was taught from the start. Those who are looking for a faith community to join should look for those who have a statement of faith that is Biblically based, is sound in the gospel, has an outreach to the lost and endeavors to be accountable to each other so that we help each other to live Godly lives that brings glory and honor to Him.
Thanks for asking.
Not according to the Bible.
Thanks for trying.