A planned super city in South Korea that will cost an estimated US$275bn (€202bn, £160bn) will include a host of leisure features including a theme park, casinos, luxury hotels, a 50,000 seat concert hall and a medical-themed ‘healing town’.

Dubbed ‘City8’, the giant metropolis will create an estimated 930,000 new jobs and aims to attract 134 million tourists annually.

Other features for the proposed city – to be built on an island shaped like a figure of eight – include a Formula One race track, and ‘hallyu town’ – which will show off traditional Korean entertainment to visitors.

A series of artificial landmarks will also be built, including the ‘Inner Circle’ – a tubular 8.6m (13.8km) building along the city’s coast, and the ‘Mega Strip’ – a 200m (656ft) high, 880m wide (2,887ft), and two mile (3.3km) long building that would be the largest architectural object ever built.

Aside from the tourist attractions, City8 will also have government services, offices, plus permanent and temporary housing for up to 320,000.

Scheduled to be completed by 2030, the city is to be located next to South Korea’s busiest airport, with the majority of visitors coming from China. The green city would house green industries and eco-friendly homes and would also incorporate the world’s largest bridge linking North and South Korea. The proposed super city will be completely self-sustainable, requiring no fuel inputs from outside sources.

UK-based architects Fosters and Partners are working on the design of the development, after winning an international competition, with ideas for the development including a rapid transit system linking the main three areas of the city.