This blog is a celebration of the extraordinary manmade and natural sites that don’t always make the official lists, but deserve to be called wonders in their own right
This is the fourth and final chapter in our series exploring the wonders of the world, following our journey through the ancient marvels that defined civilisation, the modern masterpieces that symbolised progress, and the natural wonders that showcased the planet’s raw beauty
Throughout history, humankind has built and discovered countless landmarks that capture our imagination, spark our creativity, test our endurance, and explore the power of nature. Yet beyond the canonical “Seven Wonders,” there exists another world of awe-inspiring creations and phenomena that defy expectation. The world is dotted with cutting-edge skyscrapers and geological curiosities, and while these “would-be wonders” may not always appear on official lists, they embody the same sense of wonder, innovation, and majesty that define the greatest achievements of our world.
A World of Wonders Beyond the Usual Lists
Over the course of our Katch the Wonders series, we have travelled through time and across continents to explore the iconic structures and natural phenomena that have shaped humanity’s understanding of beauty and brilliance. We’ve marvelled at the ancient achievements of civilisations long gone, admired the modern triumphs of architecture and engineering, and stood in awe of nature’s untamed artistry.
But not all wonders fit neatly into history’s lists. Some are too new, too unconventional, or too remote to have earned an official title, yet their impact on culture, design, and imagination is undeniable. These wonders speak to our endless pursuit of the extraordinary. Below, we explore ten awe-inspiring sites that remind us that wonder should never be confined to any single list.
Burj Khalifa, Dubai, UAE
Soaring 828 metres above Dubai’s desert skyline, the Burj Khalifa represents one of the ultimate symbols of human ambition. Officially opened in 2010, this architectural marvel redefined what was possible in engineering and urban design. Created by Skidmore, Owings & Merrill, with architect Adrian Smith and structural engineer William F. Baker, the building’s sleek, spiralling form draws inspiration from the Hymenocallis flower, combining elegance with innovation.
Recognised as the world’s tallest structure, the Burj Khalifa is a vertical city, playing home to offices, residences, restaurants, and the Armani Hotel. It represents Dubai’s transformation into a global hub of progress and imagination, a shining beacon of modernity that reaches toward the heavens. What the pyramids were to ancient Egypt, the Burj Khalifa is to the 21st century, and a bold declaration of human vision made real.
Living in Dubai, we get to witness this enormous structure nearly every day, but each time, it is still as impressive as the first.
Hagia Sophia, Istanbul, Türkiye
With over 1,500 years of history, the Hagia Sophia is a living chronicle of empires, religions, and artistry. Originally built in 537 AD under Byzantine Emperor Justinian I, it was the world’s largest cathedral for nearly a thousand years before becoming an Ottoman mosque, then a museum, and finally once again a mosque. Its massive dome, which appears to be seemingly floating above a halo of light, remains one of the greatest architectural feats of the ancient world.
Every stone and mosaic within Hagia Sophia tells a story of transformation. It has witnessed the rise and fall of civilisations, the merging of faiths, and the evolution of Istanbul itself, beginning with Constantinople’s Christian heart and now reigning as a symbol of global heritage. Few structures encapsulate the fusion of East and West, sacred and political, as profoundly as this timeless masterpiece.
I saw the beauty of the Hagia Sophia firsthand in December 2022, and it truly does live up to its billing. Flocks of tourists were queuing to get a glimpse inside, to marvel at this architectural wonder up close and personal.
Angkor Wat, Cambodia
Hidden within the jungles of Siem Reap lies Angkor Wat, the world’s largest religious monument and one of humanity’s most extraordinary architectural undertakings. Built in the 12th century by King Suryavarman II, this sprawling temple complex was originally dedicated to the Hindu god Vishnu before later transforming into a Buddhist sanctuary. I was lucky enough to have visited this almost endless series of temples in 2017, picking up both memories and a little sunburn along the way.
Its five lotus-like towers symbolise Mount Meru, the mythical home of the gods, surrounded by vast moats representing the cosmic ocean. Every surface is adorned with exquisite bas-reliefs depicting gods, warriors, and celestial dancers, offering a breathtaking visual record of Khmer mythology and art. Once lost to time and rediscovered in the 19th century, Angkor Wat remains a living monument to spirituality, craftsmanship, and resilience, becoming one of the main tourist attractions in Cambodia, drawing in up to three million visitors annually.
Sydney Opera House, Australia
I remember all those years ago watching the 2000 Summer Olympics, which were held in Sydney, and cheering on Sonia O’Sullivan as she took home the silver medal in the women’s 5000 metres. I was only 8 and it was Ireland’s only medal that year, but throughout the games, there were a few images that stood out and are still etched in my memory. One of the most iconic was seeing the majestic Sydney Opera House for the very first time.
Many years later, in December 2024, I got to see it for myself in real life. It was definitely as impressive as I imagined it would be.
Few structures capture imagination like the Sydney Opera House, a vision of white sails seemingly billowing across the harbour. Designed by Danish architect Jørn Utzon and completed in 1973, it redefined what modern architecture could be. It is a sculpture in motion that tested the limits of engineering, with its complex geometry pushing the boundaries of what was thought possible at the time.
Today, the Opera House is both a cultural epicentre and a symbol of Australia itself. Hosting thousands of performances each year across music, theatre, and dance, it’s a meeting place for creativity and community. Its story, one of perseverance, innovation, and bold design, reminds us that true wonder often begins with daring to think differently.
Gardens by the Bay, Singapore
Showing that technology and nature can coexist, Gardens by the Bay is a futuristic oasis at the heart of Singapore. Opened in 2012, this 250-acre landscape combines horticultural artistry with cutting-edge environmental design. Its towering “Supertrees”, vertical gardens up to 50 metres high, generate solar power, collect rainwater, and house more than 160,000 plant species.
Beyond their visual spectacle, the gardens represent Singapore’s sustainability efforts and its vision for a greener future. The Flower Dome and Cloud Forest conservatories showcase ecosystems from around the world, blurring the line between natural beauty and human ingenuity. Gardens by the Bay is living proof that the cities of tomorrow can be as awe-inspiring as the natural world.
Eiffel Tower, Paris, France
Once dismissed as a temporary eyesore, the Eiffel Tower has become one of the most recognisable and beloved monuments on Earth. Built by Gustave Eiffel for the 1889 Exposition Universelle celebrating the centenary of the French Revolution, it was completed in just over two years using 18,000 iron pieces and two and a half million rivets.
Originally intended to stand for only 20 years, it was saved by its value in early scientific research, including radio transmissions. Over time, it evolved into a global stage for historic events, dazzling light displays, and artistic expression. Today, the Eiffel Tower symbolises Paris, and is one of the first thoughts that come to mind when thinking about the so-called city of love.
Statue of Liberty, New York, USA
The view from the top of this incredible building is unlike anywhere else in New York. Gifted by France to the United States in 1886, the Statue of Liberty remains one of the most powerful symbols of freedom and hope ever created. Designed by sculptor Frédéric Auguste Bartholdi, with its iron framework engineered by Gustave Eiffel, who we mentioned earlier as the mastermind behind the Eiffel Tower, the statue was envisioned as a beacon to immigrants arriving in New York. It was also seen as a reminder of the shared ideals of democracy.
Standing over 90 metres tall from base to torch, Lady Liberty’s flame is meant to carry the promise of a better world. Inscribed with Emma Lazarus’s famous poem “The New Colossus,” she continues to embody the universal longing for liberty and belonging.
Table Mountain, South Africa
Rising dramatically over Cape Town, Table Mountain is a geological wonder shaped by over 260 million years of erosion. Its flat-topped summit, often veiled in a misty “tablecloth” of cloud, offers panoramic views of both city and sea. It is one of the world’s oldest mountains and a natural landmark that defines South Africa’s landscape and identity.
It became even more famous during the 2010 FIFA World Cup, held in South Africa, when plenty of striking shots were captured during the tournament. I had always dreamt of visiting this captivating destination, and in the summer of 2019, I got to live out this dream. The views from the top are spectacular, and even viewing it from the city of Cape Town is a marvel in itself.
Home to an extraordinary diversity of flora, including species found nowhere else on Earth, Table Mountain is truly a natural sanctuary. For centuries, it has been a place of navigation, inspiration, and reflection, and a stark reminder that not all wonders are built by human hands.
The Giant’s Causeway, Northern Ireland
Along the rugged Antrim Coast, more than 40,000 interlocking basalt columns form one of the most striking geological formations on the planet. The Giant’s Causeway was formed around 60 million years ago from intense volcanic activity, with molten lava cooling and contracting into perfect hexagonal shapes.
According to legend, it was built by the Irish giant Fionn mac Cumhaill as a pathway to Scotland. When another giant known as Benandonner from across the Irish Sea in Scotland threatened Ireland, Finn retaliated by tearing up great chunks of the Antrim coastline and hurling them into the sea. The newly-created path, which was called the Giant’s Causeway, paved a route over the sea for Finn to reach Benandonner.
Benandonner is a massive giant, much bigger than Finn, so in order to save himself, Finn retreats to Ireland and is disguised as a baby by his quick-thinking wife. When Benandonner arrives, he sees Finn disguised as a baby and realises that if a baby is that big, the father must be absolutely massive.
Scared of what might happen if he meets the baby’s father, Benandonner rushes back to Scotland, tearing away as much of the Causeway as he can in his haste to put as much distance between Ireland and himself as possible. And thus, the myth of the Giant’s Causeway was born.
Science tells a different, though equally fascinating, story, and one of nature’s mathematical perfection. Today, this UNESCO World Heritage Site continues to inspire myth, art, and awe, standing as a timeless reminder of Earth’s mysterious power.
Mariana Trench, Pacific Ocean
Descending nearly 11,000 metres beneath the surface, the Mariana Trench is the deepest known point on Earth’s seabed, so remote and extreme that sunlight cannot reach it. Discovered in the 19th century and first explored in 1960 by the bathyscaphe Trieste, it remains one of the planet’s last frontiers.
Within its crushing depths, scientists have discovered resilient forms of life, proving that even in the harshest environments, nature finds a way. The Mariana Trench challenges our understanding of biology, geology, and endurance, with some of its depths still just waiting to be discovered.
The Wonders That Keep Us Dreaming
Ancient temples, modern towers, mountain peaks, and oceanic abysses, wonders come in all shapes and sizes. The world is full of wonders, and even the little things in life, like freshly cut grass or a gentle breeze, can be considered wonders in their own right. While these “unsung marvels” might not appear on every list, they share the defining trait that they inspire.
In celebrating them, we recognise that wonder is not limited; it is all around us, constantly being created, rediscovered, and reimagined.
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