The world’s most famous landmarks are instantly recognisable, but some of them are also changing rapidly. Whether it’s due to climate change, overtourism, erosion, wear and tear or criminal damage, the wonders of our world are under threat.

Click through this gallery to see how the planet's most famous places are being transformed...

India’s incredible Taj Mahal was built between 1631 and 1648, in memory of the Mughal emperor Shah Jahan's favourite wife. Once a vibrant white, it's now rather losing its shine thanks to a mixture of pollution and insect organic matter.

Today, the majestic marble building is a rather unsightly brown and green colour. Despite a 4,015-square-mile (10,400sq km) area surrounding the Taj Mahal protecting it from pollution and the building having a mud bath in an attempt to clean it, the problem is actually worsening.

The Azure Window was a stunning limestone arch near Dwejra Bay on the island of Gozo that was famous for its beauty, and starred in HBO's Game of Thrones. The landmark was shaped by years of natural coastal erosion.

Unfortunately, Mother Nature was also its downfall – in 2017, the rock formation collapsed during a heavy storm. It was a huge draw for tourists visiting the island, especially at sunset.

Although the view isn't nearly as picturesque since the collapse, divers say it’s the best thing to happen to the area. The huge brittle rocks have given them a whole new area to explore – proof that some clouds really do have silver linings.

The Azure Window isn’t the only arch to have collapsed in recent years. Legzira Beach in southern Morocco was home to two stunning arches until 2016, when one eroded and collapsed.

Here we see locals and tourists surveying the huge pile of debris left on the beach after the collapse. A second arch a little further along the beach survived, but it is highly likely that it will suffer a similar fate. For the moment, at least, you can still reach it at low tide and capture some incredible photos.

The snowy glaciers at the summit of Africa’s highest mountain are disappearing – one lost 16.4 feet (5m) in thickness between 2000 and 2009. Others are melting just as rapidly.

The changes could be to do with the increase in temperature in the Indian Ocean, altering the climate and winds around the mountain. Experts predict that Kilimanjaro's northern glaciers (pictured) could completely disappear by 2050.

If you go to a national park that’s famed for its glaciers, you’d be hoping to see some. But in Montana’s Glacier National Park, often called the Crown of the Continent, they’re melting away at an alarming rate.

Some of the glaciers in the park have shrunk in size by 85% in the last 50 years, and the retreat is expected to continue. A model published in 2003 predicted that two of the park's largest glaciers will become inactive by 2030. A more recent study predicts that tiny remnants could last 10 to 15 years past that date if they're in sheltered places.

The long-term impact remains the same. Deeper lakes will form as the ice melts and it'll have a huge effect on the rest of the park's ecosystem.

In Edinburgh, Scotland, Greyfriars Bobby – a life-size statue of the terrier who supposedly guarded his owner's grave for 14 years – attracts visitors from all over. But it's to the detriment of the sculpture.

The frequent nose rubs from tourists take their toll on the statue and have caused serious damage to the patina. It costs hundreds of pounds to repair so, in a bid to minimise damage, city officials have asked that he only get a light touch on the nose.

The high concentration of salt in the Dead Sea, located between Jordan and Israel, means people can naturally float. Reading a newspaper while bobbing about is a popular afternoon activity. But the sea's waters are receding and causing sinkholes to appear.

The surface level is dropping by approximately three feet (1m) every year. Around 50 years ago the Dead Sea covered roughly 386 square miles (1,000sq km) but it has now shrunk to about 234 square miles (605sq km).

As well as rising temperatures, a lot less water is flowing into the Dead Sea from the River Jordan due to irrigation. There are now moves to direct more water back into the Dead Sea in an attempt to restore its levels.

Visitors to the prehistoric caves of Lascaux, in the Dordogne region of France, caused irreparable damage to the stunning cave paintings found within. The works were discovered by teenage boys in 1940 and the cave opened to the public in 1948. But years of humidity from body heat and people breathing out carbon dioxide harmed the site enormously.

The cave is now closed to the public, but tourists can see a complete, detailed replica at a visitor centre near the original site. You can gaze up at the animal paintings for as long as you like without fear they'll deteriorate. The caves themselves became UNESCO-listed in 1979. 

The 14,000-year-old bison drawings in northern Spain’s Caves of Altamira are closed to crowds for similar reasons to the Lascaux Caves. Preservation is key, and just five people are allowed to visit for a 37-minute tour per week.

For those people not lucky enough to win a ticket in the lottery, there's a museum nearby that follows Lascaux's lead and showcases a very convincing replica of the cave and its paintings. It's not the real thing, but it's expertly done.

Hooking a 'love lock' with your initials on the Pont des Arts in Paris was long the must-do thing for loved-up tourists. Millions of them were locked onto the bridge and it became so heavy that part of the railings collapsed.

The grilles of the French capital's famous bridge were replaced and it's now illegal for romantics to attach locks to the bridge. However, it doesn't stop people from attaching locks to the nearby lampposts.

Antony Gormley’s art installation called 'Another Place' has been permanently installed at Crosby Beach, near Liverpool in northern England, since 2007. It's comprised of 100 statues, all modelled on the artist's own body.

Some of the statues are placed far out to sea so can only be seen when the tide is out. It's these statues that bear the brunt of Mother Nature. Weathering, oxidation and the addition of whelks and barnacles looking for a new home are all part of the ever-changing display.

The world's largest reef system and biggest living structure, the Great Barrier Reef is one of Australia's most famous attractions. But what was once a colourful array of corals, thriving with fish and marine life of all kinds, is now a climate change tragedy.

Coral bleaching – when water temperatures get too warm and kill the organisms that grow on coral – has had a huge impact on the reef's marine life but it's also affected tourism. Some areas are no longer appealing for divers, and the problems facing the Great Barrier Reef are likely to get worse.

The salt flats in southwest Bolivia are the largest in the world at more than 4,600 square miles (12,000sq km). When the surface is dry, the expanse looks like a patchwork of brilliant white and, when wet, the blue sky and clouds above are reflected perfectly. But the salt flats are also resting on half of the world’s lithium reserves.

Demand for lithium is increasing – it's used in smartphone batteries, for example – and Bolivia is extracting it. Mines and heavy-duty machinery are ruining the view and putting the picturesque salt flats at serious risk.

Located in Los Glaciares National Park, in the Santa Cruz province of Patagonia, Perito Moreno is a glacial giant measuring a staggering 18.6 miles (30km) in length. While many of the glaciers surrounding it are melting, Perito Moreno is actually growing.

It’s not yet understood by scientists why this is happening. Some suggest that it's due to the steepness of the ice, others think that the climate on the outskirts of the huge glacier might play a part.

What is important is that, although it does look to be gaining ground, the overall amount of ice amassed is actually minimal and every six years or so the glacier's edge collapses – putting on an incredible show.

Some weathering of these ancient structures is inevitable, but the biggest danger to the Pyramids of Giza and Great Sphinx is actually pollution, which is causing the monuments to erode. Sewage is also causing severe damage to the plates that they’re standing on, which could eventually lead them to collapse entirely.

Not only is pollution from the nearby city of Cairo damaging the incredible monuments, it's also causing decreased visibility for tourists. Those views aren't so Instagrammable when you add a smog filter.

When the Statue of Liberty was first erected in 1886, it was actually a muddy brown colour. You can see how it originally looked in this photograph from the early 20th century.

But because Lady Liberty is made of copper, oxidation (the process of air and water reacting with metal) has given the statue the trademark green hue we see today.

The Sycamore Gap tree, made famous by its appearance in the 1991 film Robin Hood: Prince of Thieves, was one of the best-known and most photographed trees in the world.

Situated in the beautiful Northumberland National Park in northeast England, it stood in a dramatic dip in Hadrian’s Wall – the epic Roman fortification and World Heritage Site.

Sadly, the iconic Sycamore Gap was dramatically changed when – in September 2023 – the 150-year-old tree that had stood since the reign of Queen Victoria was chopped down in an act of deliberate vandalism.

The felling of the much-loved tree led to an outpouring of anger and grief. In August 2024, it was revealed that it was showing signs of regrowth with new shoots emerging from the base of the stump. Experts, though, have said it may never be the same again.

Now find out how the world's weather is affecting other popular tourist attractions