The construction of the Sydney Opera House commenced on March 2, 1959. However, by the time Tonight visited the site in 1965, the project was plagued by technical difficulties, soaring costs, divided public opinion, and political conflicts.

In 1965, reporter Trevor Philpott sat by Sydney Harbour, attempting to find the perfect metaphor for Jørn Utzon's striking architectural design. "It was a cluster of soaring shells, a flock of seagulls with concrete wings, a fleet of sailboats with billowing concrete sails," he described. But he also added, "And it was an unmitigated nightmare to build."

The Opera House’s journey from vision to reality was far from smooth. The idea was first proposed in the late 1940s by Sir Eugene Goossens, a renowned English conductor who envisioned a world-class performance venue on Bennelong Point, a site historically significant to the indigenous Gadigal people. With relentless lobbying, he convinced New South Wales Premier Joseph Cahill of the project's importance. This led to an international design competition in 1957, where an unknown Danish architect, Jørn Utzon, emerged as the unexpected winner.

Though Utzon’s bold, imaginative design captivated many, it also drew harsh criticism. "From the start, it left Sydney in awe and outrage," noted Philpott. Dubbed the "Sydney Harbour Monster" and a "disintegrating circus tent," the project was met with skepticism. Despite this, Cahill pushed forward with construction, even as Utzon struggled with unresolved structural challenges. To fund the ambitious project, a state lottery was launched.

Originally estimated to cost A£3.5 million (A$7 million), with an expected opening date of January 26, 1963, these projections soon proved wildly optimistic. By 1962, costs had skyrocketed to A£12.5 million, and the completion date became increasingly uncertain.

A major breakthrough came when Utzon, inspired by peeling an orange, devised a way to construct the Opera House’s complex shell roof from sections of a single sphere. This innovation simplified production, but ongoing labor disputes, design modifications, and rising material costs continued to push the project further behind schedule.

The situation worsened in 1966 when political tensions led to Utzon's resignation. His departure sparked public protests, but instead of reinstating him, the government appointed a new team of Australian architects to complete the project. They significantly altered Utzon’s original interior design, leading to additional delays and costs.

Despite the controversy, the Sydney Opera House was finally completed in 1973—ten years late and at a staggering cost of A$102 million, 14 times the initial estimate. Queen Elizabeth II officially opened the landmark on October 20, 1973, acknowledging both its architectural brilliance and the immense challenges faced during its construction.

Jørn Utzon, disheartened by the changes to his vision, refused to attend the opening. "I cannot see anything positive in the interior work done," he wrote, marking the end of his connection with what would become one of the world’s most iconic structures.