George and Helen Zongolopoulos in 1938 George Zongolopoulos in Rome, Italy, 1956 George Zongolopoulos at the entrance of the Greek Pavillion in the Venice Biennale George Zongolopoulos George Zongolopoulos in front of his sculpture "Delphi" in 1964 George Zongolopoulos George Zongolopoulos in his house along with the sculpture "Vacuum and sphere"