Unearth the technological leaps forward that have allowed the world's longest tunnel - the Gotthard Base Tunnel - to be built. The Gotthard Base Tunnel stretches 57 kilometres through the heart of the Swiss Alps. It is deeper than any other tunnel on Earth and paves the way for a vital high-speed rail link between Zurich and Milan. 2000 workers and four gigantic tunnel boring machines work flat-out to excavate 24 million tonnes of mountain rock to complete the tunnel. Explore how this structure was made possible through a series of six engineering breakthroughs. See how six landmark tunnels - including the Thames Tunnel and Channel Tunnel - each feature an ingenious technological innovation that have enabled tunnels to grow ever longer.

At 171 m long, the USS Pennsylvania is the biggest submarine in the US Navy. It can dive deeper than a thousand feet, sail for 20 years without refuelling, and remain submerged for up to six months. The vessel carries a crew of 155 men and a deadly nuclear arsenal. Uncover the innovations in six landmark submarines, including the tiny Turtle and colossal German U-boats, that made it possible for engineers to incorporate underwater breathing, torpedos, missile launch systems and stealth technology into ever bigger submarines.

Continuing this week is the factual series that examines the evolution of modern engineering. The third instalment explores the leaps in aviation technology that led to the development of the world’s largest cargo plane – the Antonov An-124. Weighing in at 392 tons, the Antonov An-124 can carry tanks, trains and even other aircraft to the farthest corners of the globe. The pinnacle of modern aeronautical engineering, this gigantic cargo plane owes its existence to nearly 100 years of innovation...

培狄杜钻井平台所在海域的水深超过两公里，比其他钻井平台都深。这座水上工厂可以朝任何方向钻掘，而且深度可达海底下方3公里。培狄杜钻井平台是全世界最大的钻井平台，本片将详细探讨培狄杜钻井平台的诞生，是拜哪些科技大跃进之赐。

高达165公尺的新加坡摩天轮是世上最高的摩天轮。它每小时可以载1260名乘客饱览下方三个不同国家的景色。本片探讨新加坡摩天轮的诞生，是如何归功于五个历史性的工程学突破。

本片探讨国际太空站的诞生，是如何归功于五个历史性的工程学突破。我们在片中介绍五座最具代表性的太空站，工程师在集合它们的创新之后得以建造更大的太空站，并探索太空旅行的奥妙。

本片探讨三峡大坝的诞生，是如何归功于五个历史性的工程学突破。我们在片中介绍六座最具代表性的水坝，本片利用生动先进的电脑动画，揭露这些结构背后惊人的故事，及让它们越盖越大的新发明。

海洋独立号有18层楼高，提供4300名旅客豪华的享受。本片探讨这艘邮轮的诞生，是如何归功于五个历史性的工程学突破。我们在片中介绍五艘最具代表性的轮船，其中包括大不列颠号和玛丽皇后号，每一艘轮船都代表着一项重大的技术创新。

日本的大分体育场是世上最大的圆顶建筑，本片将详细探讨大分体育场的诞生，是拜哪些科技大跃进之赐。这座体育场可容纳四万三千名观众。只要打开开关，就能收起体育场的座椅，露出下方的田径场，屋顶也能轻易开启和关闭。