And they're underreported by as much as 10 times, according to new research.
At the top of the list: Get people on board with annual fare increases.
Street photographer Dougie Wallace embedded himself in the lewd, bloody bashes of England's worst bachelor-party destination.
Trick riders take a vertiginous journey high above the streets of London.
With Londonmapper, we can visualize anything from knife crime to hedgehog sightings in the British capital.
An animation built with georeferenced records of the city's historic road network.
People can figure out what it'd cost to live at different points of their commute. Your city needs something like this.
Here are a few short films about the hard-working construction crews who dispose of your trash.
When open data is too open.
Britain's parliament is launching an official enquiry into recent heavy smog.
A Facebook page sparks controversy over privacy rights in public spaces.
A mix of Sahara desert dust and industrial emissions from Europe has blanketed the city.
For a first-time buyer, the average home now costs eight times gross earnings, the highest ratio since at least 1983.
The $8.50 cover charge hasn't stopped feline-lovers from flocking to Lady Dinah's Cat Emporium.
An artist making humorous miniature scenes is transforming the city into Lilliput.
Blending the digital world with the analog.
The Garden City is back.
A first in the seven-year history of the Global Financial Centres list.