The biggest, the longest, the fastest, the scariest. Engineers are taking their skills into literally uncharted territories.

In the ceaseless quest for knowledge, a vast orbiting laboratory is being built hundreds of kilometres above the Earth. To provide society with the energy it needs, engineers are laying the world’s longest gas pipeline across the bottom of a hostile sea.

To keep us all moving freely, incredible feats of railway engineering are being undertaken, replacing track on one of the world’s busiest lines and installing a new rail system beneath the bustle of one of the world’s great cities.

Meanwhile, a new breed of diamond hunter is venturing into the frozen wastelands of the Canadian Arctic in search of treasure. For those who seek thrills, three brand new record-breaking roller coasters are about to be unveiled. And to provide the most terrifying ride possible they are each made of wood.