Christo began working with the landscape as a student employed to beautify the landscape of his native Bulgaria as seen from the Orient Express. He later moved to Paris and associated with Nouveau Réalisme, a group of artists who used found materials and responded to everyday situations in their work. Christo’s ambition for larger projects was established when he moved to New York in 1964 with his wife and collaborator Jeanne-Claude. In 1960 John Kaldor invited Christo to Australia, a visit which resulted in ‘Wrapped Coast – One Million Square Feet, Little Bay, Sydney, Australia’ 1968–69 – Christo and Jeanne-Claude’s first major environmental work and one of the most ambitious land-art events in the world at the time. It was during his visit to Australia that Christo wrapped two Australian eucalypts to make ‘Two Wrapped Trees’.