Crucifixion in the arts on a mathematical representation of the fourth dimension that is both unseeable and spiritual; Gary Bolyer assesses it as "one of the most beautiful works of the modern era." The sculpture "Construction (Crucifixion): Homage to Mondrian", by Barbara Hepworth, stands on the grounds of Winchester Cathedral. Porfirio DiDonna's abstract "Crucifixion" is one of a number of religious works he painted in the 1960s, "blending the artist's devotion to the liturgy and his commitment to painting". The "Welsh Window", given to the 16th Street Baptist Church after it was bombed by four Ku Klux Klansmen in 1963, is a work of
Single Form sandalwood sculpture "Single Form" (BH 103) which he displayed in his United Nations office (now in the Dag Hammarskjöld Museum at Backåkra in Sweden). He had discussed with Hepworth the possibility of her being commissioned for a work at the United Nations Headquarters. She may have started work, expecting a commission, before Hammarskjöld's death: the commission was formally ratified by the United Nations in September 1962. Hepworth had started work that led to the bronze in 1961. "Single Form (Chûn Quoit)" (BH 311) was cast in bronze in an edition of seven in 1961, with its shape marked with an