The Secret Bench of Knowledge (formerly Secret Bench, Lost Paradise) is a sculpture created by Canadian artist Lea Vivot and produced in multiple castings. A prominent one is located at the entrance to the Wellington Street Library and Archives Canada in Ottawa, where it was initially placed in 1989 on the artist's own initiative. One year later Vivot removed it and it was replaced four years later by Eugene Boccia from Toronto. The sculpture was unveiled at about 9 AM on the morning of May 1, 1994 in front of a crowd of about 3000 people.