Weeding can be a thankless task, but in 2020 one gardener, who chose to remain anonymous, was rewarded for his hard work when he came across a hoard of 15th-century coins. The 63 gold coins and one silver coin were found in a garden in the New Forest, England and they far exceed what is believed to have been the typical annual wage during the Tudor period. The hoard features four coins from Henry VIII’s reign that include the initials of his wives Catherine of Aragon, Anne Boleyn and Jane Seymour, which add to the coins' rarity.

Experts have deduced that the coin collection may have been buried by a merchant, given the New Forest’s proximity to the sea, or that they could have been hidden by religious groups during the Dissolution of the Monasteries in the late 1530s and 1540s. The coins were registered with the British Museum’s Portable Antiquities Scheme (PAS), which has verified some 47,000 finds this year alone.

Mehmet Keleş was also doing some gardening when he came across something incredible. The retired father-of-three was planting orange saplings in his 10-acre garden in the Arpaçiftlik district of Turkey in 2006 when he unearthed a portion of mosaic. Keleş informed Hatay Museum (pictured) and expert-led excavations commenced the following year. So far, discoveries on the plot have included more mosaics, animal figures, stone tombs, bone remains and the pièce de résistance: a 6th-century Holy Apostles church.

What the pair had found was a stack of artwork, and there were similar piles stashed throughout the crumbling building – some already rotting among the disarray of the house. Around 40 prints were found in total, including 24 signed pieces by Kenojuak Ashevak, a renowned Inuit artist. The artwork had belonged to the West Baffin Eskimo Co-operative in Kinngait – a non-profit that celebrates the art, tradition and culture of the Inuit. While this exact collection is yet to be valued, this type of work has rapidly escalated in value in recent years. Enchanted Owl (pictured) is one of Ashevak’s works to have recently sold at auction, and it fetched CA$204,000 ($153k/£120k) in 2019. 

In October, James and Clarissa Munford were settling into their new home in South Carolina, when James looked in the built-in drawers of a closet and found that it was housing more than mothballs. The wardrobe contained an incredible coin collection, including 46 gold Liberty $5 coins and 18 Morgan silver dollars from the 1800s. But the coins didn’t stay with their new owner for long…

In 2018, a New York couple had a shock when they found a safe filled with treasure buried in their garden. In 2011 there had been a burglary at a neighbour's home. Seven years later, Matthew and Maria Emanuel discovered the stolen goods in their garden while planting trees...

The safe the Emanuels dug up turned out to be quite the treasure trove, with its contents including piles of wet $100 bills, as well as diamonds, jade, and gold. Once dried and examined, the total value of the items was calculated at $52,000 (£38.5k). The accidental treasure hunters returned everything to their neighbours and have since placed a ceramic elephant statue on the lucky spot where they dug up the riches.

The stash was donated to the Museum of London, which deduced that the coins belonged to German-Jewish refugee Martin Sulzbacher. Fearing a Nazi invasion, his brother had buried the coins in his back garden in 1940 and told only his direct family members where they were located. Sulzbacher's brother and family members were killed not long after during a bombing raid and the location of the treasure died with them. The museum has since found the owner's descendants and handed over the $130,700 (£101k) find.

Despite having spent most of their life tucked under floorboards, the posters were found in pristine condition, with the vividness of the colours adding huge value to the artwork. A poster for Red Headed Woman (pictured) was one of the more valuable pieces among the hoard and it alone fetched a huge $77,675 (£48k) at auction in Dallas in 2010, surpassing the original estimate by around $20,000 (£15k).

However, despite legally declaring the finds, the couple underwent a criminal investigation when they sold 23 of the bars. And that's not all. The publicity of the criminal investigation led the previous owners of the house to sue the couple over the ownership of the gold bullion. They won, which meant that the couple had to hand over the remaining bars, and reimburse them for the bars they had already sold.

Michael Rorrer was clearing out his late great aunt's home in Virginia when he stumbled upon a collection of 345 comics in the basement. The collection belonged to his late uncle, Billy Wright, who had never told anyone about his hobby before his death in 1994. The carefully-arranged collection included rare comics such as Detective Comics No. 27, the first comic to star Batman (pictured).

Like a lot of older houses, this one came with some surprises, but rather than spots of mould or damp hidden in corners, this man kept finding himself stumbling upon gold. From lone coins to ingots and bars, the house was jam-packed. Hidden in furniture, and even a whisky bottle, the total value of the 220 lb (100kg) of gold reached €3.5 million ($3.8m/£2.7m) when it was sold.

When collector Dr Harold Carr passed away in 2009 he left his house in Newcastle, England to his relatives. But it was in the garage that the richest inheritance was to be found. Perhaps unsurprisingly given the doctor's name, it turned out that Dr Carr had a penchant for vintage vehicles and inside there was a 1937 Bugatti Type 57S, which had originally been owned by Earl Howe.

The eccentric doctor had bought the car for £895 ($2.5k) in 1955. But over 50 years later his relatives sold the motor for a whopping £2.9 million ($4.2m), a strange turn of events for a family who didn't realise what Dr Carr had kept stowed away. As his nephew said: "It was a bit of local folklore that he had a Bugatti, but no one knew for sure. It's worth so much because he hasn't used it for 50 years. It was one of the original super cars." A super car and a super find for the family.

When cartoonist Don Trachte's sons were renovating their late father's property in 2005, they were shocked to find paintings concealed in the walls. One of the hidden paintings, Breaking Home Ties, was by their father's friend and neighbour, artist Norman Rockwell.

His sons reasoned that their cartoonist father, who was responsible for creating the character 'Henry', had painted copies of the original paintings to prevent his wife obtaining them during their divorce. The sons sold the original of Norman Rockwell's Breaking Home Ties in 2006 for $15.4 million (£8.7m), which was a record for the artist's work at the time.

Discover the amazing treasures that are waiting to be found

When Thomas Schultz and his business partner Laurence Joseph decided to buy a cottage in New York for $300,000 (£152.8k) in 2007, they were also the recipients of the work of the home's previous owner, a relatively unknown Armenian artist called Arthur Pinajian. The art was meant to be dumped on a landfill site at the artist's request but Schultz couldn't throw away a man's life work, so set about organising the collection of over 70,000 paintings. Little did he know what was going to happen next...

Trawling through the attic of a deceased relative can be a lengthy job, but it was made more interesting for one family when they discovered a painting by Vincent Van Gogh. The original owner had bought the artwork back in 1908, only to banish it to a life of gathering dust in the attic when a supposed expert told him that it was a fake. In 2013 the owner's descendents had the painting re-examined, and experts were astonished to realise that it came from the same era of Van Gogh's career as Sunflowers and The Yellow House.

While Sunset at Montmajour has yet to be sold at auction, experts have likened the piece to Van Gogh's most famous work Sunflowers, in both size and quality, and that sold at auction for $39.9 million (£25.8m) in 1987. If the piece were to go to auction now and fetch a similar amount, that would make it worth a breathtaking $90 million (£70m) in today's money.

Read about the treasures found on construction sites

However, the identification of the painting as Carvaggio's Judith Beheading Holofernes is contested. Pictured here in the Brera Art Gallery in Milan in 2016, there was outrage at it being exhibited as a Caravaggio when its author is not universally agreed. If it is a Caravaggio, the painting has a value of $113 million (£86m).

On moving to an area close to the Temple Mount in Jerusalem in 1970, Theo and Miriam Siebenberg wondered if their newly-built house had religious artefacts beneath it. Multiple archaeological surveys came back saying that that wasn't the case, but the couple kept investigating. In fact, they spent eight years constructing a retaining wall with anchors that could hold up to 60 tonnes of pressure to prevent their house from collapsing during their investigation. Then they started digging, and finding treasure...

Soon they found a 2,000-year-old keyring, followed by perfume bottles and 2,600-year-old arrowheads. Digging further into the ground archaeologists discovered a plethora of treasures, from jewellery and glassware to ancient burial chambers dating back 3,000 years to King David. After 10 years of careful excavation, the Siebenberg house became the Siebenberg Museum, and now exhibits its treasures that tell the story of Jerusalem over thousands of years. You can't put a monetary figure on this kind of discovery, but it's safe to say that its value – both monetary and historical – is huge.

Now discover the most brilliant treasure finds of the last decade

There are signs that the area was inhabited as early as 900 BC and that the mosaics were built as a decorative element in an upper-class home around 200 BC. Highlights of the mosaic include a black and white section that dates back to the 1st century BC and a fragment believed to be built during the reign of Emperor Trajan (pictured) between 98 and 117 AD.