The Catholic Church preserves and venerates relics, including bones, of saints and biblical figures, but authenticity is not always verified. Some examples:

Verified relics:

1. Saint Peter’s bones: Stored in St. Peter’s Basilica, Rome, Italy.
2. Saint Paul’s bones: Located in the Basilica of St. Paul Outside the Walls, Rome, Italy.
3. Saint Luke’s remains: In the Cathedral of Padua, Italy.

Disputed or unverified relics:

1. The Crown of Thorns (Jesus Christ): Now in Notre Dame Cathedral, Paris, France.
2. The Shroud of Turin (Jesus Christ): Stored in Turin Cathedral, Italy.
3. The True Cross (Jesus Christ): Fragments scattered across various churches.
4. Saint Anne’s (Mary’s mother) relics: In the Basilica of Saint Anne, Jerusalem.
5. Saint Joseph’s relics: In various locations, including the Cathedral of Nazareth.

Relics with unclear provenance:

1. The Chains of Saint Peter (Acts 12:6-11): In St. Peter’s Basilica.
2. The Spear of Destiny (John 19:34): Now in the Hofburg Palace, Vienna, Austria.

The Catholic Church has strict guidelines for authenticating relics:

1. Historical documentation
2. Continuous veneration
3. Verification by the Congregation for the Causes of Saints