It's hard to believe it's been 20 years since Kevin Macleod first started following the home building exploits of pregnant people living in caravans with a cash flow problem.
From towering tree houses to homes literally dug out of the ground, for two decades Grand Designs has showcased the weird and wonderful houses of the UK and beyond - and the compelling stories behind them.
Tonight, Kevin will recap his own top five pics in a commemorative episode of the Channel 4 show, titled Grandest Designs.
Among them is a Devon home crafted into the shape of a fossil shell and an old recording studio used by the likes of Queen and John Lennon.
But they're not the only properties worth shouting about. From the London water tower to the entire home devoted to disco, here's 20 of the most mind-blowing homes from the show's entire history...
1. The Glass & Timber House, London
In 2002, master carpenter Bill Bradley and his wife Sarah set about turning his wood yard into two light-filled timber houses in the centre of East Dulwich, south London.
But it wasn't easy given the plot was stuck in the middle of 30 back gardens, especially given the gigantic panes of glass that run floor-to-ceiling around a courtyard.
The couple then sold one of the properties to pay for the build, allowing them to choose their neighbours.
2. The Water Tower, Kennington
Property developer Leigh Osborne and his partner Graham Voce risked everything they had to transform the 100ft tower into a family home.
They bought it for £380,000 and expected to spend £600,000 on the revamp. But the total bill for the refit of the Grade II listed building would eventually come out at a staggering £2million.
A two-storey glass cube with the largest set of sliding doors in Europe was added, and the 24ft living room boasted 360-degree views of London.
Spread over 10 floors, the five-bedroom, four-bathroom property went on the market last year for £3.6million.
3. The Castle House, Yorkshire
Architect Francis Shaw and his wife Karen took the bold decision to turn a crumbling, moss-covered ruin dating back to 720AD into a £1.65million family home.
The epic restoration of Hellifield Peel Castle near Skipton began in 2004 and led to two nail-biting years of structural and financial crises.
Costs for archaeological research spiralled from £6,000 to £20,000 and a central wall collapsed just three months into the build.
The couple eventually moved in and ran a successful bed and breakfast business from the property before putting it up for sale for £1.65million in 2016.
4. The Woodman's Cottage, Sussex
The fairytale build was once voted the most popular ever by Grand Design viewers and saw Ben Law construct a house in the West Sussex woods for just £28,000.
A condition on the planning permission meant that if he ever left he'd have to take his home down. So in a bid to keep the initial outlay low, he used materials from the woods and built the walls with 300 barley bales.
5. The Tree House, Isle of Wight
Thought to be the most expensive venture ever on Grand Designs, Bram and Lisa Vis took out 11 loans to fund the £3million conversion of a 1970s bungalow.
Featuring an outdoor pool and its own private beach, the 7,200 square foot six-bedroom home was nestled in the trees, surrounded by 2.2 acres of land.
The couple put it on the market for £3.95million last year, but dropped the price to £2.99million in April after it failed to sell.
6. The Japanese House, Monmouthshire
Tamayo and Nigel Hussey transformed a 1960s forester's lodge into a Japanese-inspired masterpiece in a nod to Tamayo's home country.
The 2015 project featured a roof bath, sliding paper walls and a frame built of Japanese larch - which they feared wouldn't be strong enough to support the house.
7. The Loch House, Killearn
Featured in 2008, the episode saw Jim Fairfull build a five-bedroom home on the idyllic shores of Loch Lomond as a cure for his stress-related ulcerative colitis.
"It's good for the soul. Living in a house like this changes your personality," he told the Daily Mail of achieving his dream.
8. The Thatched Cottage, Hampshire
In series seven, Alex and Cheryl Reay left London and bought at dilapidated medieval thatched cottage in the New Forest.
Just before Christmas, while Cheryl was nine-months pregnant, Alex heard a loud crack and realised the thatched roof had caught fire. The entire roof had to be removed before it could be extinguished, leaving nothing but a shell and the couple homeless.
They eventually taught themselves the traditional skills needed to rebuild the roof and went on to complete the renovation.
9. The Shipping Container House, County Londonderry
Young farmer Patrick Bradley created a £100,000 house design that involved using 45-foot shipping containers welded together to form a giant cross-shaped structure.
The construction was then erected across a stream on his family's farm, and Patrick's mum hoped the house would help her son attract a girlfriend.
10. The Large Timber-Framed Barn, Essex
Freddie Robins and Ben Coode-Adams left their two-bedroom London flat behind to convert a Grade II listed timber barn into the home of their dreams.
But they started with just half the cash the experts had recommended and faced another hurdle when the council refused to let them install roof lights.
Instead, Ben fitted a mesh roof at a cost of £130,000.
11. The Disco Home, London
Claire Farrow and Ian Hogarth really liked to party, and in 2010 decided to create the ultimate home complete with a dance floor, DJ booth and sauna - right in the heart of London.
12. The Fossil Shell House, Devon
Engineer Stephen and horticulturist Elizabeth Tetlow fancied themselves a house in the shape of a fossil shell, and planned to devote 12 months and £600,000 bringing their dream to life.
It ultimately proved to come in at £200,000 over budget and a year behind schedule. It took them nine months alone just to attach the roof panels - by hand.
13. The Modest Home, Woodbridge
One of the most heartbreaking episodes featured Lucie Fairweather, whose partner Nat McBride was diagnosed with cancer just as they were about to start building their affordable eco home.
He tragically passed away, but Lucie bravely soldiered on and brought their house to life for their two young children.
14. The Scandinavian House, Lizard
It's never been harder to get on the property ladder, which is why interior designer Kathryn Tyler decided to design and build her own home in her parents' back garden.
The first brick was laid on Kathryn's 30th birthday in June 2009, and she remained hands-on for the entire build.
15. The Computer Cut House, Hampshire
Two university professors wanted to build their first home together from the ground up and hired industrial designers to use state-of-the-art computer technology to cut building blocks from scratch.
16. The Lifeboat Station, Tenby
Tim and Philomena O'Donovan chose to convert an empty lifeboat station into a modern home.
The crumbling Grade II listed wreck had scared many a potential developer away, but the plucky pair persevered despite the only access to the property being a 40ft-high pier - unless the tide was out.
17. The Dome House, Lake District
Architect Robert Gaukroger bought a patch of land from his next-door neighbour and set about filling it with his fantasy home in 2010.
But the dream ended in disaster when she took him to court claiming he'd fenced off an area of land she still owned.
They eventually settled out of court and Robert moved to London to study a post-graduate degree.
18. The Recording Studio, London
The premises in Holland Park was once Lansdowne Studios - as used by the likes of Shirley Bassey, Queen and John Lennon.
But in 2006 spatial and interior designer Audrey Lovelock and her husband Jeff converted it into a jaw-dropping apartment.
"It had the huge studio window which separated the mixing desks from the studio area," recalled Audrey, admitting it was the perfect space for their teenage sons.
"The boys loved it – because of the soundproofing, they could have 20 mates around and we wouldn’t even know they were there."
19. The Glass House, Brixton
Carl Turner created the low energy 'Slip House' as an example of a modern approach to terraced housing.
Made of milky, translucent glass, steel and concrete, it spanned three floors and featured solar powered heating, rain harvesting and mechanical ventilation heat recovery.
20. The Shed House, County Down
Shed fanatic Micha Jones turned a forgotten old agricultural building into a gigantic upside-down shed.
He and his wife Elaine and their two young boys lived in a mouse-infested caravan during the build, which almost ended in disaster when their £200,000 budget ran out.
