Record-breaking new structures will be explored in a new radio series to be broadcast on the BBC's World Service.
The four part series Block on Block will look at the some of the latest stadiums, bridges, tunnels and domes which are taller, wider and deeper than before. Producer and presenter Roger Fenby talks to architects, engineers and historians about the ideas behind each structure.
Structures under scrutiny include:
The new Stadium Australia created for Sydney Olympics in 2000.
The Jiangyin Suspension Bridge being built over the Yangtze river which will be China's longest suspension bridge.
New domed mosques in Oman and Kuala Lumpur.
The South Deep Mine in Johannesburg which will be the world's deepest mine shaft at 3km.
The programmes will be broadcast on 2, 16, 23 and 30 August at 6.30pm.