The Peace Garden in Nathan Phillips Square consists of a simple cube with a pitched roof, an eternal flame, a pool and stone platform walls. The roof has a damaged appearance, which signifies conflict and evokes the theme of civilization's frailty.

The eternal flame appears to support the structure, symbolizing the hope and regeneration of mankind.

Former Mayor Nathan Phillips presented the sundial located in the Peace Garden to the citizens of Toronto. It is inscribed with the words, "In appreciation of the opportunity to serve."

The sundial, which was installed on Nathan Phillips Square in 1969, was designed by G.R. Johnson (in consultation with City Property Commissioner H.H. Rogers and architect John C. Parkin) and fabricated by F. Caruk, Master Welding Limited.

On March 5, 1984, during the City's Sesquicentennial (150th anniversary) celebrations, then Prime Minister Pierre Elliott Trudeau turned the first sod for the Peace Garden's construction.

In September of the same year, His Holiness Pope John Paul II lit the eternal flame with an ember from the Memorial for Peace in Hiroshima, Japan. The Holy Father poured a vial of water from the rivers that flow through Nagasaki into the pool.

Her Majesty Queen Elizabeth II formally dedicated the Peace Garden in October, 1984.

The Peace Garden measures 1800 square feet (or 600 square metres). It cost $540,000.