The parks are the lungs of London.
- William Pitt, British Prime Minister (1766 - 68)

They have now been recognised as the lifeblood of major urban centres and the staple of Sunday afternoons in the city. The importance of green open spaces in urban areas should never be underestimated.

Many of us have moved to the urban hubs of our respective countries for a chance of a good job and a great nightlife. However, lurking in the hearts of each and every single one of us is the urge and, indeed, the desire to walk barefoot in the park without a care in the world, yet still remaining within a five-minute journey from the office.

Here are some of the world's finest parks and many of its hidden treasures.