Katherine being presented with her award at London's Science Museum

Katherine Chisnall from Trowbridge drew a logo incorporating landmarks including Big Ben, Blackpool Tower, Edinburgh Castle and the Severn Bridge.

It will feature on the front page of Google - the internet search engine - for 24 hours from 1730 GMT on Monday.

Her "Doodle 4 Google" logo called "Five wonders of Britain" is expected to be seen by about 20 million people.

'Really excited'

The schoolgirl will visit Google's head office in San Francisco - the Googleplex - with her parents Caroline and Nick and her brother Michael as part of her prize.

Katherine was also presented with a laptop for herself and an interactive whiteboard for her school, St Augustine's RC, at a ceremony at the Science Museum in London on Monday.

She told BBC News Interactive that she was "really excited and a little shocked" about winning the award.

"We started it [the logo] off at school and then I finished it at home.

"I'm really excited to be going to San Francisco and to meet the man who designed the original Google logo," she said.

No Harry Potter

She was revealed as the winner at the Doodle 4 Google final event, hosted by presenter and historian Tony Robinson.

Entries from more than 15,000 youngsters to the My Britain competition showed a preference for history and heritage over popular culture.

One in three of those submitting entries said the royal family was the key to their British identity.