Arup is a British multinational professional services firm headquartered in London that provides design, engineering, architecture, planning, and advisory services across every aspect of the built environment. It employs about 17,000 people in over 90 offices across 35 countries, and has participated in projects in over 160 countries.

The Sydney Opera House is a multi-venue performing arts centre in Sydney, Australia. Located on the foreshore of Sydney Harbour, it is widely regarded as one of the world's most famous and distinctive buildings and a masterpiece of 20th-century architecture.