Legoland Windsor is hoping to get into the record books today by building the world's tallest Lego tower.
Thousands of people are lending a hand to put together the gargantuan structure made from 500,000 bricks.
When it's finished the structure will stand at a height of more than 31.9 metres, which will beat the current record set in Seoul, South Korea.
More top news
A woman and man have been charged with murder after a baby was found unresponsive on a bus.
Rebecca Casserly was on her way to buy a coffee in north London when her phone was suddenly snatch from her hand by a man riding a bike.
Lee Curley took more than 120 pictures and videos of his attacks on the girl, said to be under the age of 13.