I am going to draw the small differences between Christianity and Catholicism.
Catholicism
Place of origin Roman province of Judea, which is part of present-day Israel, Palestine and Lebanon
Place of worship Church, chapel, cathedral, basilica.
Use of statues and pictures Crosses, statues and pictures are acceptable in Catholicism. Catholics widely use them as depictions of Christ, Mary, and the Saints.
Belief of God One God: The Father, the Son, and the Holy Spirit. Apostles and Nicene's Creed states beliefs
Clergy Heirarchial clergy in Holy Orders Deacons, monks, nuns, Priests and Bishops, other ranks are only offices (archibshop, cardinal Pope etc. although several other offices also exist)
Founder Jesus Christ, St. Peter the Apostle.
Literal Meaning catholic - from the Greek adjective καθολικός, (katholikos) meaning "general" or "universal".
Life after death Eternal Salvation in Heaven; Eternal Damnation in Hell; Temporal third state before Heaven for those who desire purification, known as Purgatory.
Means of salvation Received at baptism; may be lost by mortal sin; salvation through faith and penance. Belief in Jesus as the sole savior of humanity. Must have a relationship with Jesus. Good Works. Seven Sacraments.
Human Nature Man has inherited "original sin" from Adam. Mankind then is inherently evil and is in need of forgiveness of their sin.
Practices Catholics are expected to participate in the liturgical life, celebrate and revere Jesus' sacrifice on the cross at Mass. The celebration of seven sacraments Baptism, Eucharist, Confirmation, Matrimony, Anointing of Sick, Holy Orders and Confession.
Goal of religion To give glory to God and share Eternal Life in Him.
View of the Buddha N/A
Marriage Marriage is sacrament between one man and one woman. Divorce does not exist in Catholicism, but there is annulment (that the marriage was invalid to begin with) by competent church official.
Confessing sins Confess to priests for absolution from sins in the name of Christ (John 20:22-23). Prayer to the Saints.
Religious Law 10 Commandments, Canon law , Catechism of the Catholic Church (CCC), papal decrees and orders.
About Belonging to the Church Founded By Christ, when He chose St. Peter as His Rock (first Pope). Apostles creed gives summary of Catholic creed, man fell and Christ came to redeem mankind.
Concept of Deity Believe in the Trinity. Three persons in one God: Father, Son and Holy Spirit.
Holy days Sundays; Solemnity of Mary, January 1; Ascension of Jesus, May 13 — Celebrated on the sixth Thursday after Easter Sunday; Solemnity of All Saints, November 1; Immaculate Conception of the Blessed Virgin Mary, December 8; Christmas, December 25
Second coming of Jesus Affirmed.
God's role in salvation God sent His only Divine Son to save humanity from their sins.
Belief Believe that Jesus Christ is the Messiah, the King of Heaven, and Saviour of the entire world.
Holy days/Official Holidays Sunday (The Lord's Day), Advent, Christmas, Lent, Holy Week, Easter, Pentecost.
Religion which atheists may still be adherents of None. Faith is integral to Catholicism, a christian who rejects Christianity altogether is considered an Apostate. Atheism is a sin against Faith.
Identity of Jesus God Incarnate. Son of the Father. The Messiah saviour of mankind sole mediator between God and man.
Position of Mary The Queen of all Saints. View is similar to the Orthodox church - the title 'Mother of God' being used more commonly than Theotokos. In addition, it is claimed that at various points in history, Mary has revealed herself to the world in apparitions.
Virtue on which religion is based upon Love.
Original Languages Latin and Greek; Aramaic, Hebrew.
Population 1.33 Billion Globally
Geographical distribution and predominance Roman Catholic church is located in Vatican City, an independent City-state. Catholicism is geographically dispersed throughout the world. 69% of Catholics are located in Latin America.
Scriptures Holy Bible, a collection of 73 canonical books in two parts, 46 in the Old Testament, and 27 in the New Testament.
Goal of Philosophy Eternal Salvation.
Promised Holy one. Second Coming of Christ
Birth of Jesus Virgin Birth, through God.
Resurrection of Jesus Affirmed
Authority of Dalai Lama N/A.
Death of Jesus Death by Crucifixion, Resurrection, and Ascent to Hevean
View of other Abrahamic religions According to Catholic doctrine, Catholicism is the original Christian Church. Christianity is the true religion, and Catholicism is true Christianity.
Ressurection of Jesus Affirmed
Branches Latin rite & Eastern rite and as of 2008 the Anglo-Catholic derivative of Latin Rite; Orthodox Christianity.
Praying to Saints, Mary, and Angel Allowed. They can intercede with God on your behalf.
View of other Dharmic religions N/A
Rites 7 Sacraments: Baptism, Eucharist, Penance, Confirmation, Marriage, Holy Orders, Anointing of the Sick; exorcisms, blessings of objects, dedication of churches sacred garments installation into clerical offices. Roman Missal and eastern rites.
Day of worship Worship should be a continual process in the lives of Roman Catholics. Sunday is not the only day Catholics can attend Church for Mass.
Offshoot religions Protestant denominations and many others.
Use of statues Permitted. Statues are not worshipped.
Authority of Pope Successor of St. Peter.
Original Language Ecclesiastical Latin and Greek; also Aramaic and Hebrew historically. Vernacular languages are permitted.
Prophet Moses, Abraham, John the Baptist, many others.
View of Animistic religions Pagan Idolatrous.
Legislation Canon Law, diocesan Law, Papal Decree.
View of other Oriental religions N/A.
Direction of Prayer Facing the Blessed Sacrament (when in Church).
Purgatory Affirmed
View of God Trinitarian: God the Father, Son, and Holy Spirit.