Adults show off love for Lego

Millions of pieces of Lego, transformed into intergalactic cities and fantasy worlds, are all on display at a show in Auckland.

More and more adults are taking up the hobby, many with displays at the Auckland Brick Show over the long weekend.

Lego fan Mark Lusty has spent three years and tens of thousands of dollars on his "very detailed" masterpiece.

Adults show off love for Lego
Photo credit: Newshub.

"I've got a double garage that's basically dedicated to my Lego now," he told Newshub.

Mr Lusty's next mission is to build a seven-metre spaceship.

Over 3000 square metres of Lego will make up the spectacle, open until Monday.

Enthusiast Colin Doyle says when he's not surrounded by boxes and boxes of Lego at home, he's a university professor.

"It's about X-rays and atoms and chemistry and maths, physics and that's all very precise and this is extremely creative."

Adults show off love for Lego
Photo credit: Newshub.

Mr Doyle's new obsession prompted him to seek out his childhood Lego set.

"One time when I was visiting home I said, 'Mum where's the Lego we had as kids?' And she said, 'it's in the cupboard there and don't make a mess'. Which is pretty much what she used to say 30 years ago... well, 40 years ago."

The 65 Lego creations on display include trains from Berlin, the Wild West and Star Wars.

Dave Critcher's exhibit doesn't have the same glitz - he's spent five years creating a replica of the Whakamaru Dam near Rotorua.

Adults show off love for Lego
Photo credit: Newshub.

"I've tried to incorporate as much detail from the dam itself and I've done that through blueprints and photographs, lots of photographers.

"I've got a big wall at home and it's got pictures of all the parts of the dam.

"There's probably $50-$60,000 worth of parts in there."

Organisers say only a third of the expected 15,000 spectators at the show will be children - a sign Lego is for big kids too.

Newshub.