Art is typically associated with galleries and museums, yet there are instances where nature itself becomes the canvas. From the heart of a forest to the vastness of a desert, a natural environment can lend a bizarre and mystical quality to an artwork. Take, for instance, the mysterious mirrored monoliths that began appearing around the globe in 2020. While they might not have felt as eerie in a museum, their presence in remote locations gave them an unsettling aura.
Here are 10 of the most peculiar pieces of art found in nature across the world—some are captivatingly strange, while others may send a chill down your spine.
10. Elmer Long’s Bottle Tree Ranch

Elmer Long’s Bottle Tree Ranch is a testament to the idea that one person’s discarded items can be another’s treasure. Situated along a desert road near Helendale, California, the Bottle Tree Ranch is an outdoor gallery made of metal pipes adorned with colorful glass bottles. Long embarked on this artistic venture in 2000 after inheriting his father’s passion for bottle collecting, along with the bottles that now populate the exhibit.
Long crafted over 400 of these unique steel and glass trees. When it came to arranging the bottles on the rods, he followed a careful system. "I divide them by color, alternating on the pipes. Brown faces green, and clear faces blue, all set at 3, 6, 9, and 12 o'clock positions," he explained to Route Magazine.
Although Long passed away in 2019, his unconventional Bottle Tree Ranch remains open for visitors to explore.
9. The Painted Tanks on Flamenco Beach

Flamenco Beach, located on the Puerto Rican island of Culebra, is a tropical paradise—except for the two M4 Sherman tanks that rest on its pristine white sands. The tanks' presence traces back to 1901, when U.S. President Theodore Roosevelt designated all public land on Culebra to the U.S. Navy. In 1936, the Navy began using the island for bombing drills, leaving behind craters and debris from the blasts.
By 1970, the people of Culebra had reached their limit, especially after the Navy attempted to force them out. They launched peaceful protests, such as marches and human blockades. Their determined yet non-violent actions led to a victory when, after several months, the Navy agreed to vacate the island by 1975.
Nevertheless, the Navy left behind a few remnants, including two large tanks that now lie rusting on Flamenco Beach. The locals don't seem to mind, and over time, the tanks have become a canvas for vibrant layers of graffiti art.
8. The Enormous Moss-Covered Sculptures in Jardim do Nêgo (Nêgo’s Garden)

Nestled in the mountains of Nova Friburgo, Brazil, is an unusual sculpture garden filled with gigantic clay figures. Among the works, you’ll find animal sculptures like a frog, elephant, and snake, as well as some eerie human statues, including a towering baby and a woman in labor. Although man-made, the moss that blankets these sculptures lends them a strangely organic appearance.
The clay sculptures were created by artist Geraldo Simplício, better known as Nêgo, who settled in the mountainous region decades ago and has been sculpting these large clay figures ever since. Nêgo often spends time in the garden, allowing visitors to engage with him while admiring his larger-than-life works.
7. The Melting Rock Formation

For several years, Desert X, an open-air art exhibit, has been staged in the desert surrounding AlUla, Saudi Arabia. One of the sculptures featured in 2024 was created by artist Aseel AlYaqoub, resembling a rock formation melting away. Named Weird Life: An Ode to Desert Varnish, the sculpture drew inspiration from a geological process known as desert varnish, where the top layer of rock oxidizes, forming colorful red, orange, yellow, and black patterns.
"The work captures an ancient, fleeting moment, invisible to human eyes—a cascade of desert varnish flowing down a mountain or rock, forever frozen in time," states the official description of the artwork. To craft this eerie piece, 440 pounds (200 kilograms) of tinted epoxy resin were used. Though the artwork was only displayed for a short period, its dripping texture contrasted starkly with the solid rock formations behind it.
6. Otherworldly Conical Mounds in the Desert

Crop circles are typically associated with crop fields, but a similar otherworldly formation can be found in the eastern Sahara Desert, near the northern tip of the Red Sea in Egypt. This formation consists of two interlocking spirals—one made of conical protrusions, the other of mirrored conical depressions. It has been in place since March 1997.
Known as “Desert Breath,” the artwork was conceived by artist Danae Stratou, with assistance from industrial designer Alexandra Stratou and architect Stella Constantinides. Spanning over 1 million square feet (100,000 square meters), the piece features tall cones at the outer edge of the spiral, standing roughly twice the height of an average person, which gradually diminish as they reach the center where a circular pool of water rests. Over time, the cones have been left to disintegrate, and although they have softened, they remain visible today.
"In our mind’s eye, the desert was a place where one experiences infinity," Stratou explains. Visitors can either walk through the infinity-inspired spiral or observe the artwork from above, taking in a panoramic view from the nearby mountain.
5. The Eyes on a Mountainside

The medieval walled town of Cuenca in Spain is so impeccably preserved that it holds UNESCO World Heritage status. While the town’s historic buildings are the main attraction, a peculiar piece of art literally watches over it: two enormous blue eyes that gaze down from a mountainside.
Called “Los Ojos de la Mora” (“The Eyes of the Moor”), the imposing eyes may appear ominous, but there’s a poignant, tragic love story behind them. Legend has it that many years ago, a Muslim woman and a Christian soldier fell in love. Her father, however, opposed their relationship and intended for her to marry another Moor. Refusing to marry him, the woman planned to escape with her Christian lover, but the rejected suitor murdered him. Heartbroken, the woman soon passed away. The eyes on the mountain are said to represent hers, marking the spot where the couple had planned to meet before fleeing together.
4. Creepy Faces Carved into Trees

Pareidolia is the phenomenon where humans tend to see faces or patterns where none actually exist. A common example is spotting faces in tree bark. However, those walking through Steckeschlääfer Gorge in Bingen Forest, Germany, will encounter real faces carved into the trunks and roots of trees. These carvings depict mythical creatures like goblins and trolls. Some of the faces appear quite friendly, while others sport a menacing grin.
The carvings, created by Franz Kellermeier in 1971, total 66 faces that can be found along a short walk of less than a mile. For those looking to extend their adventure, Reichenstein Castle is just a short distance away.
3. Doll’s Head Trail

Constitution Lakes Park, located in Atlanta, Georgia, is home to a 2.5-mile (4-kilometer) walk known as Doll’s Head Trail. As the name suggests, the trail is lined with doll heads and other discarded toys arranged as art. The trail began to take form in 2011, thanks to Joel Slaton. "While hiking at Constitution Lakes, I began to find discarded doll parts, bicycle pieces, car fragments, and appliance bits. These were the first items I used for the displays," Slaton told CNN.
"The trail has transformed into public art, created by the community," Slaton explained. "The displays have changed significantly over time, mostly due to people taking pieces and vandalism." While the trail's displays are ever-evolving, many have been documented online. One particularly eerie creation features an old doll attached to a fan blade, complete with puns like "a fan of art" and "spun out" written on it.
2. Bomarzo’s Monster Garden

During the 16th century, Francesco Orsini, the Lord of Bomarzo, hired architect Pirro Ligorio to create a bizarre sculpture garden. Called Bosco Sacro di Bomarzo (The Scared Grove of Bomarzo)—but usually known as Parco dei Mostri (Park of the Monsters)—the space is home to an array of massive stone sculptures, some of which are rather unsettling.
Although there are non-scary statues, such as those of an elephant and a massive turtle, there are also a number of terrifying creations. The star of the horror show is the wide open mouth of Orcus, the god of the underworld, but visitors to the garden can also see mythical creatures and even a huge man ripping another man in half.
The sculpture park was actually left to ruin for hundreds of years after Bomarzo’s death. However, interest in the garden picked up after Salvador Dalí visited the site and created a short film about it in 1948. His 1964 painting The Temptation of Saint Anthony was also inspired by the monsters.
Why exactly Bomarzo wanted a garden filled with creepy stone figures remains a mystery. One theory is that it was intended as a garden of grief after his wife, Giulia Farnese, died. Another is that he wanted to create the opposite of Cristoforo Madruzzo’s garden, called Soriano di Cimino, which represented goodness.
1. A Surreal Cyclops Head in the Woods

Nestled in the woods near the French commune of Milly-la-Forêt stands a colossal Cyclops head sculpture. Reaching 74 feet (22.5 meters) in height, this bodiless figure is constructed from 350 tons of steel. Its face is covered in mirrors, while the back of the head features a complex arrangement of gears. Visitors can ascend into the head via a staircase.
This single-eyed creation, named "Le Cyclop," was designed by Swiss artist Jean Tinguely, his wife Nikki de St Phalle, and their collaborators. Work on the sculpture began in 1969, using salvaged materials, but it took many years to finish. The piece wasn't opened to the public until 1994. The French government now maintains the structure, protecting it from the elements. While access is free, visitors have the option to pay for a guided tour.
