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...

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?

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.

The iconic 375 Park Avenue in New York, built in 1958 by the king of Modernist design, Ludwig Mies van der Rohe, changed skyscraper design forever. As the world's most influential and copied tower, it has inspired the square glass blocks of every global skyline. But behind its revolutionary glass façade is the fascinating story of how a skyscraper that couldn't afford to be built got built - and how its creator finally managed to realise his 40-year architectural dream.

As the tallest residential skyscraper in the UK, Manchester's distinctive Beetham Tower is turning heads and dividing opinion. Heading up a new generation of skyscrapers that are regenerating Britain's post-industrial cities, Beetham is at the heart of a battle between traditionalists and modernists. Despite producing some of the world's leading architects such as Richard Rogers and Norman Foster, Britain isn't exactly enamoured with skyscrapers. And this reluctance to embrace the high-rise even extends to the country's future king, Prince Charles.

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)

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 2003, Moscow's Triumph Palace became Europe's tallest building. In the 1940s Josef Stalin commissioned a series of seven tall towers that would compete with the skyscrapers of New York. Known as the Seven Sisters. Matt Berman investigates the design and political genesis of these towers and examines why an eighth sister, the Triumph Palace, has been added in 21st century capitalist Moscow.

Moscow has become Europe’s skyscraper capital, with the Naberezhnaya Tower holding the title of the continent’s tallest building. It represents a new era for the city, one in which Moscow can finally compete with the other major financial centres of the world. Presented by Matt Berman.

The John Hancock Center in Chicago is one of the most influential skyscrapers of the twentieth century. When completed in 1969 this was the tallest tower in the world outside New York City and is still the most famous structural expressionist style building in high rise architecture. Presented by Charlie Luxton.

1180 Peachtree is a striking icon on the Atlanta skyline, its huge fins making it distinct from other skyscrapers in the city. But it’s not all about good looks - 1180 is creating a new era for the city’s towers. Presented by Matt Berman.

Taiwan, China’s renegade province, wanted to make the world sit up and notice it – so it built the planet’s tallest skyscraper, Taipei 101, in its capital city. An architectural meeting of East meets West, Taiwan’s biggest global advertising board and symbol of achievement was a defiant gesture towards its neighbouring superpower, and a calculated quest for Taiwanese commercial attention proving that in modern times, the super-tall building is more than just the corporation HQ of the past. Presented by Matt Berman.

With the highest roof on earth, the sleek Shanghai World Finance Center stands in the city that has overtaken New York and Chicago as skyscraper capital of the world. Setting the standard for a new generation of supertall skyscrapers, this Japanese-developed tower, built on Chinese land, also symbolises a new era in relations between the two previously hostile countries after Japan's violent invasion of China in the 1930s. Presented by Matt Berman.

In the late 1980s the Malaysian government decided to build a skyscraper so unprecedented in size and so ambitious that it sought to overtake Chicago’s Sears Tower as the tallest building in the world. The result – the elaborately curved Petronas Towers in Kuala Lumpur – achieved both goals. Presented by Matt Berman.

Behind the glistening façade of Boston’s John Hancock Tower lies one of the most embarrassing moments in architectural history. The insurance company wanted to express their corporate might by building a modernist skyscraper in the heart of Boston’s historic core.Their dream tower turned into their worst nightmare and what followed is one of the most unbelievable tales in architectural history. Presented by Matt Berman.

Stunning skylines are fuelled by money – and Hong Kong has one of the most stunning in the world. With a lack of land on the island, the only way is up. The most prized – and expensive - plot is the financial district of Central where one skyscraper towers above the rest, star of Batman movies and gleaming white pillar of capitalism, 2 International Finance Center. Presented by Matt Berman.