Vertical City

Still the tallest tower in the US – as well as the tallest building in the world for 25 years – the $175million Sears Tower broke boundaries in not only height but design and construction when it was completed in 1973. But building the tallest building in the world brings its own logistical headaches – and the crippling cost of funding an iconic tower can take its toll. Presented by Keith Keaveney. Architects: S.O.M (Bruce Graham)

Every major city has a symbolic piece of architecture that projects its image to the world. But what happens when a city loses its trademark icon? This was exactly the problem that faced Malmo in Sweden - but it came up with the perfect way to reinvent itself. The city decided to build a radical skyscraper, created by one of the world's most innovative architects, Santiago Calatrava. But daring design always courts controversy - and the whole project very nearly ended in disaster.

Skyscrapers have transformed cities across the globe - most notably the famous skyline of Manhattan. But on 9/11, this historic cityscape became forever linked with one event that forced architects to rethink. Designed by skyscraper guru David Childs, from renowned architects SOM, 7 World Trade Center is the first building to be constructed on Ground Zero and it has taken skyscraper safety to new levels. But overlooking a plot of land that symbolises the risk of building tall, do those who work in it really feel safe?

Charlie Luxton travels to Commerzbank, Frankfurt to explore the world's first eco-friendly skyscraper, designed by British architect Norman Foster.

Vertical City goes up top Down Under to the tallest residential building in the world – the 300m Eureka Tower, the most exclusive address in the Southern Hemisphere. But is living the high life destroying our traditional city communities? Are these Vertical Villages changing the way we live forever? Presented by Keith Keaveney. Architects: Karl Fender and Nonda Katsalidis.

The strongest building on Earth, Torre Mayor is constructed to withstand earthquakes that would obliterate the average skyscraper. Built in the wake of Mexico City’s most devastating earthquake in 1985, this monument to engineering has become a haven of safety in one of the world’s most active seismic zones. But can the ever growing height of skyscrapers compete with typhoons and earthquakes? Can man’s high rise addiction really conquer nature? Presented by Keith Keaveney.

Surfer's Paradise has come a long way from a small town with great waves perched on the south-east coast of Australia. Surfer's has a growing reputation as the resort of choice for the rich and famous, and the skyline is growing too with the massive Q1 Tower dominating the landscape. But how has this uber-skyscraper effected the paradise that is Surfer's? Presented by Keith Keaveney. Architects: The Sunland Group

You’re a new developer, you want to build a tower in a bleak part of town and you’ve got to fill half the building before you get planning permission. What do you do? Get in a Superstar Architect to ensure your skyscraper gets noticed and gets headlines. Cesar Pelli waved his magic design wand over the Cira Center and made it stand apart from any other high rise in the area. But are celebrity architects over paid and over hyped? Presented by Keith Keaveney. Architects: Cesar Pelli and Associates

Even before the modern skyscraper, the super tall building has been a source of innovation and fierce competition – and no time was the fight for height fiercer than in the late 18th century when cathedrals across Europe competed to make their spires the tallest. Cologne was the tallest building in the world for 4 years – but where did the money for these religious super spires come from? And just how fierce – and dirty - did the fight become? Presented by Charlie Luxton.

In 1991, One Canada Square, the UK's tallest skyscraper, changed the London skyline. But the Cesar Pelli designed icon wasn't in the heart of the capital. Instead, the developers had taken a billion dollar gamble on creating an international financial centre, symbolised by this obelisk-shaped tower, in the desolate docklands of the city's East End. But when the world property market collapsed just after the complex was completed, the developers went bankrupt and a large part of the tower lay in darkness...