Suspended 565m above China’s remote south-west mountains, the Beipanjiang Bridge took decades to construct and has revolutionised bridge-building around the world.

Although not as widely known as the Great Wall, the karez – and its vast maze of underground tunnels – is one of China’s most recognized ancient engineering feats.

This unique architectural idea was medieval India’s ingenious answer to perennial water shortage.

Switzerland's 15th-Century farmers and vintners had a dangerously creative solution to irrigating their mountainous land that's still in use today.

While no one is sure exactly why these ingenious islets were were constructed, they provide a unique window on human life all the way back to Neolithic times in Britain.

Divided by an immense reservoir, the town of Sangkhlaburi, Thailand, is held together by the second-longest freestanding wooden bridge in the world.

The 8.2km-long Atlantic Ocean Road connects Averøy to mainland Norway, revealing extraordinary views as it hops from island to island.

Iran’s wind catchers stand as a reminder of how ancient civilisations have adapted to the region’s harsh desert environment.