It looks like construction rubble, but there is a deep history in these pulverized, glassy bricks.

Liverpool became the second hardest hit after London duringThe Blitz, with 4,000 dead and 70,000 people made homeless.

The bombing flattened over 6,500 houses as well as thousands of shops, offices, hospitals and factories.

Crosby Beach rubble

I can see people’s lives, people’s homes amongst this rubble, Marsh toldBBC.

Despite the significance of this rubble, many visitors are unaware of the history.

Those who are, will often take away pieces as souvenirs.

Crosby Beach rubble

I really want there to be signs put up at the beach,Marsh says.

If you dont know what the rubble is before you go there, you wont know.

A panoramic view of Liverpool after the bombings.

Crosby Beach rubble

Photo:Allan Rostron/Flickr

Photo:milknosugar/Flickr

Crosby Beach rubble

Crosby Beach rubble

Crosby Beach rubble

Crosby Beach rubble

Crosby Beach rubble