Read the following passage and answer the question.
'Canberra, Australia's capital, was a planned city, designed by architects Walter Burley Griffin and Marion Mahony Griffin. Its design features geometric motifs and is centred on axes aligned with significant topographical landmarks. While some find the layout sterile and inconvenient for daily navigation, it is undeniable that the city's structure is a masterpiece of early 20th-century urban planning.'
Which of the following is a statement of opinion, not fact, from the passage?