Gothic architecture wasn't just a single style.

It had hundreds of versions, some strange and some beautiful, in different places and at different times.

So here is a journey through the world of Gothic architecture...

Gothic architecture first appeared in the 12th century, when the pointed arch appeared in Europe.

Until then churches and cathedrals had been built with the round arch. This style, in imitation of Roman architecture and its round arches, is known as Romanesque.

The pointed arch is much stronger than the round arch - buildings rapidly became taller, larger, and more complex.

Whereas structural concerns had once dictated how cathedrals looked, aesthetics soon took centre stage.

An architectural revolution swept the continent...

The first phase of Gothic architecture in Britain was the Early English Style (1150-1250).

Windows remained slim and the overall design fairly simple, as embodied by Salisbury Cathedral. The tower, added later and more complex, contrasts with the simplicity of the older parts.

Next came the Decorated Style (1250-1350), so-called because it embraced detailing and complex, flowing ornamentation.

The Bishop's Eye rose window in Lincoln Cathedral and the crossing of Ely Cathedral capture this spirit, permitted by more advanced construction methods.