Unbuilt London: The Battersea Bullet train
In the late 1980s, there were plans to turn the empty hulk of Battersea Power Station into a huge theme park, and it was to come with its own high-speed rail link - the Battersea Bullet.
Unbuilt London: The Edgware Road and Victoria railway
Had it been built, there would today be a tube line running between Victoria station and Kilburn, and could have altered the route of the Jubilee line.
The unbuilt plans for hotels above South Kensington tube station
How different would South Kensington tube station look today if the previous plans for hotels and shopping centres had gone ahead?
Unbuilt London: Biota! – the East London aquarium
Not that many years ago, and already largely forgotten, there was a plan for a huge aquarium, Biota!, to be built next to the Millennium Mills in Docklands.
Unbuilt London: The Eurostar terminus at White City
Eurostar trains are based at the wonderfully restored St Pancras station close to central London, but they nearly ended up in West London, at White City.
Unbuilt London: Demolish Downing Street
Not an anti-government protest slogan, but plans from 1854 to demolish most of the western side of Whitehall and replace it with a grand monolithic building.
Unbuilt London: The Berkely Square road tunnel
Road traffic trying to go north/south in Mayfair has to cross the busy east/west Piccadilly road - so why not bury it in a road tunnel?
Unbuilt London: Diverting the Thames through South London
The River Thames flows through a very expensive part of London, so wouldn’t it make more sense to divert it somewhere cheap — like South London, and then make better use of the land in central London? That was the…
Unbuilt London: London and Westminster Improved
In 1766, a plan was published for the improvements of London and Westminster that could have resulted in Trafalgar Square as we know it today looking rather more like Leicester Square.
Unbuilt London: The new Buckingham Palace
It's 1910, the British Empire is at its height and people are starting to think that Buckingham Palace is rather shabby for an Imperial capital.
Unbuilt London: A gothic iron bridge across the Thames
Imagine a gothic bridge with turrets crossing the Thames at Lambeth, but made from iron. That was the proposal back in 1847, to replace the ferry that had long operated in this part of the Thames.
Unbuilt London: Elizabeth House, Waterloo
A futuristic arch that would have sliced into the skyline, dominating from some sides, and being almost invisible from others.
Unbuilt London: The Waterloo monument
London is full of monuments to wars and battles, but one is conspicuous by it's absence, Waterloo - but there was a plan for a triumphal arch in central London.
Unbuilt London: Brutalist Whitehall
Whitehall, the heart of government is lined mostly with grand Victorian and Edwardian buildings, but it nearly looked like the Southbank - lots of concrete.
Unbuilt London: Covering Regents Park with housing
Although Regents Park is today a large open space surrounded by grand housing, it very nearly didn't even exist.
Unbuilt London: Replacing Tower Bridge with a tunnel
Considering how iconic Tower Bridge is as a symbol of London, it's difficult to believe that just 50 years ago there were plans to replace it with a tunnel.
Unbuilt London: The “railway arcade” above the streets
Imagine if you will of streets lined with decorative arcades that protected Victorians from the weather and above their heads, a marvel of the age - a silent railway without steam.
Unbuilt London: The Southwark Railway Terminus
A scheme once proposed replacing five railway stations in central London with one giant terminus in Southwark.
Unbuilt London: The “figure of eight” tube line
There should be a major junction under Oxford Circus acting as the centre point of a large double-loop tube line, had plans shown off in 1988 gone ahead.
Unbuilt London: The Legal Quays at London Bridge
Just over 200 years ago, a plan was presented to Parliament that could have seen a large section of the City between London Bridge and the Tower of London turned into a series of large docks.
Unbuilt London: Heathrow’s rail links to central London
Although Heathrow Airport has a couple of railway links to central London, they weren't necessarily the ones that we could have ended up with.
Unbuilt London: The MARS plan to rebuild the entire of London
In the inter-war years, there was a war between two rival camps for urban planning, the high-density housing with lots of communal space, or low-density with lots of private space.
Unbuilt London: Croydon trams extension to Crystal Palace
The South London trams snake around the region offering a convenient east-west link, but once could have also been extended to just outside the former Crystal Palace.
Unbuilt London: The 1,000 Foot Tall Glass Conference Centre
In the 1960s, King's Cross almost became more famous for a massive glass tower than it was for its nocturnal delights in the seedy bars.