Graffiti has always been an urban expressionist art form. These cars are a mobile tribute to the art form.

Time-lapse and long-exposure photography capture a series of moments rather than a single split second, portraying action and movement.

Unbelievable as it may sound, there are those who track urban wonders of all kinds - from the narrowest to the most windy streets of the world and more.

Sometimes they are thought-provoking but many times they are merely funny - here are some signs you may see on the side of the road - and that might be side-splitting.

While necessarily incomplete, this collection gathers over 100 essential pieces that tell key stories about his aims, personality and history.

As graffiti and technology evolve, more and more innovative street artists are mixing media to create radical hybrids of graffiti art, design and technology.

12 examples of precariously balanced houses of cards, collages made of playing cards and paintings inspired by playing card imagery.

These amazing artists produce three-dimensional works that trick our sense of perspective and seem 3D despite being painted, drawn or chalked onto flat 2D surfaces.

Light graffiti is uniquely ephemeral and inextricably intertwined with the art of photography, sometimes even invisible to the naked eye and apparent only on film.

Seeing is believing... or is it? These architectural optical illusions constitute very public ways to fool the eye, please the mind and satisfy the soul.

With tons of energy, some fresh ideas and a willingness to play around and be goofy, the photography duo MRI creates graceful portraits of light in motion.

The utilitarianism of zebra crossing designs hasn't not stopped people from creative experimentation in the form of quite literal pedestrian street art.

Some of the most haunting abandonments are those that were once used to entertain and educate - filled with vast once-vibrant gathering and learning spaces.

Most photographs only freeze a moment in time. Long exposures can create an image that encompasses several moments; time lapse photography can even span years.

The internet has long been abuzz with Banksy, the world’s most infamous street artist. But what is the big deal, where can you find his work and more information?