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Fibonacci Day
Fibonacci Day
Look closely at this ammonite fossil. Its swirling shell, once home to a prehistoric sea creature, holds a mathematical secret—a spiral pattern. Each new chamber is proportionally larger than the previous one, maintaining a consistent growth ratio, often associated with the Fibonacci sequence.Desktop Version
A traboule in Lyon, France
A traboule in Lyon, France
In Lyon, France, you don"t just walk through the city—you glide through it. The traboules, a network of hidden passageways threading between courtyards and buildings, turn a simple stroll into a treasure hunt. They were the original shortcuts, allowing residents to dodge rain, carry goods, or move discreetly through the medieval quarters. Today, they"re less about practicality and more about discovery. These passages date back to the fourth century but became essential during the Renaissance, when silk traders used them to shuttle delicate fabrics safely from workshops to the river without braving the weather. Later, during World War II, Resistance fighters used the traboules as escape routes.Desktop Version
Sandhill cranes, Bosque del Apache National Wildlife Refuge, New Mexico
Sandhill cranes, Bosque del Apache National Wildlife Refuge, New Mexico
Every December, as morning unfolds, a chorus of rattling calls fills the marshes of the Bosque del Apache National Wildlife Refuge. This 57,000-acre sanctuary in central New Mexico prepares to stage one of nature"s most stirring performances as sandhill cranes return from their seasonal journey. Soon, tens of thousands of snow geese and other migratory birds join the scene, filling the sky with movement and sound.Desktop Version
Red deer stag in De Hoge Veluwe National Park, Netherlands
Red deer stag in De Hoge Veluwe National Park, Netherlands
Picture 21 square miles of open land, wildlife on the move, and a stag flaunting its crown of antlers. In 1909, husband and wife Anton Kröller and Helene Kröller-Müller began building a private estate in Gelderland, Netherlands—what we now know as De Hoge Veluwe National Park. Their vision? To merge art and nature. They brought it to life by placing artwork within the landscape, like "Three Upright Motives" by English sculptor Henry Moore in the Pampelse Zand and the President Steyn stone bench by Belgian architect Henry van de Velde, among others.Desktop Version
Leshan Giant Buddha, Sichuan, China
Leshan Giant Buddha, Sichuan, China
There are big statues—and then there"s the Leshan Giant Buddha. Carved into a riverside cliff at the confluence of the Min, Qingyi, and Dadu Rivers in Sichuan, China, this statue is an ancient engineering marvel. Construction began in 713 CE under a monk named Hai Tong, who hoped that the Buddha"s presence would calm dangerous river currents that threatened passing boats. He was so devoted that when funding ran out, he reportedly gouged out his own eyes to prove his sincerity. Construction took roughly 90 years and was completed long after Hai Tong"s death. At 233 feet tall, it is the largest stone Buddha in the world. Its shoulders stretch about 92 feet wide, its ears measure nearly 23 feet long, and each foot extends over 28 feet. Drainage channels built inside the statue protect it from erosion, helping explain its remarkable preservation for more than 12 centuries.Desktop Version
International Cheetah Day
International Cheetah Day
High atop a termite mound in the Maasai Mara National Reserve—a protected savanna in southwestern Kenya—a cheetah scans the plains. Its sleek body can reach speeds of up to 70 mph, making it the fastest land mammal on Earth. Long legs and a flexible spine allow incredible acceleration, while its strong tail helps maintain balance during high-speed chases. Today is International Cheetah Day—an event that couldn"t have arrived any quicker. With fewer than 7,100 individuals left in the wild, these are among Africa"s most vulnerable big cats.Desktop Version
Celebrating Native American Heritage Day
Celebrating Native American Heritage Day
Think Thanksgiving weekend is just about turkey and leftovers? Think again—today is Native American Heritage Day. Established in 2009, it celebrates the voices, art, and achievements of Indigenous peoples across the United States. This day is a reminder to look beyond parades and sales and learn from the experiences of those who first shaped this land. Communities host cultural events, storytelling sessions, and feasts featuring dishes like Three Sisters soup, wild rice, pemmican, beans, squash, and buffalo stew—each carrying centuries of legacy.Desktop Version
World Childrens Day
World Childrens Day
On the lawns of the United Nations headquarters in Geneva, two children lean over a blank page, sketching the world as they dream it could be. This scene unfolds in "World in Progress II," a monumental land art painting created by Swiss-French artist Saype in 2020. Made with biodegradable paint, the artwork depicts the vision and innocence at the heart of World Children"s Day—a spirit mirrored in today"s featured image. Look closer, and you"ll spot the artist himself posing with his artwork.Desktop Version
Maya site of Copán
Maya site of Copán
In a quiet valley of western Honduras lie the ruins of Copán—a city of the ancient Maya civilization. Its sky served as both compass and calendar, guiding celestial events and shaping temples, rituals, and the rhythm of life. Around 426 CE, K"inich Yax K"uk" Mo", a warrior from the Maya heartland, founded Copán and established its royal dynasty. The city became a center of Maya art, astronomy, and power.Desktop Version
Pearl Harbor Day
Pearl Harbor Day
At 7:55 AM on December 7, 1941, Japanese aircraft appeared over Pearl Harbor, Hawaii, and the course of history changed. In less than two hours, 19 ships were sunk or damaged, nearly 200 aircraft destroyed, and 2,403 Americans lost their lives. The battleship USS Arizona suffered the most devastating hit: a bomb struck its forward deck, igniting ammunition below and sending the ship to the harbor floor. The surprise assault crippled the US Pacific Fleet and ended America"s neutrality in World War II. The next day, President Franklin D. Roosevelt told Congress it was "a date which will live in infamy," and the US entered the war.Desktop Version
National Llama Day
National Llama Day
If llamas are the laid-back stars of the Andes, their cousins, the guanacos, are the free spirits of Patagonia. And what better day to give them the spotlight than National Llama Day? Guanacos are part of the same camelid family as llamas, alpacas, and vicuñas. But unlike their domesticated relatives, they keep things wild. Found mainly in Argentina, Chile, Peru, and Bolivia, they"re built for life at high altitude. Their thick coats help them handle chilly winds, while their padded feet give them the grip to trek across rocky terrain that would make even mountain goats nervous.Desktop Version
Celebrating 78 years of Everglades National Park
Celebrating 78 years of Everglades National Park
On Florida"s southern tip lies one of the United States" most unusual landscapes. The Everglades is not a typical swamp or river. It is a slow, shallow sheet of water that drifts south across flat grasslands toward Florida Bay, linking forests, marshes, mangroves, and coastal prairies. This subtropical wilderness supports hundreds of species, including alligators, manatees, and the endangered Florida panther. On December 6, 1947, the United States established the Everglades National Park, protecting over 1.5 million acres and shifting conservation toward preserving entire ecosystems rather than isolated landmarks.Desktop Version
International Mountain Day
International Mountain Day
Every December 11, we celebrate International Mountain Day, honoring the majestic peaks that shape our planet and the glaciers that support life. From the rolling Alps to the towering Himalayas, mountains cover nearly a quarter of Earth"s land and host 15% of the world"s population and nearly half of its biodiversity hotspots. Mount Everest, the world"s highest peak at over 29,000 feet, stands as a symbol of human aspiration and natural beauty. Its glaciers feed rivers sustaining millions, showing that mountains are more than scenery—they are lifelines.Desktop Version
Mosque-Cathedral of Córdoba, Andalusia, Spain
Mosque-Cathedral of Córdoba, Andalusia, Spain
The Mosque-Cathedral of Córdoba is a chronicle of Spain"s layered history. It began as a church built by the Germanic Visigoths, before being transformed into a mosque in 784 CE by Abd al-Rahman I, founder of the Umayyad Emirate of Córdoba. Its vast hypostyle hall, a space supported by rows of columns, features the famous red-and-white arches shown here. Today, it contains more than 850 columns, many reused from Roman and earlier Visigothic structures.Desktop Version
Merced River, Yosemite National Park, California
Merced River, Yosemite National Park, California
Every masterpiece needs a brushstroke to tie it together. For Yosemite National Park, that stroke is the Merced River—painting reflections of granite cliffs, pine forests, and waterfalls across its canvas. One of the National Wild and Scenic Rivers, this waterway begins high in the Sierra Nevada. It gathers meltwater and winds 145 miles west through Yosemite Valley into California"s Central Valley.Desktop Version
National Poinsettia Day
National Poinsettia Day
Some plants simply sit quietly on windowsills. The poinsettia? It demands the spotlight. Bright, bold, and as red as Rudolph"s nose, this December diva even has its own holiday—National Poinsettia Day, celebrated on December 12. Prior to becoming a popular Christmas decoration, this shrub had quite a journey. Long before it appeared in living rooms, it grew wild in Mexico, where the Aztecs used it for dyes and medicine. Then, in the 1820s, US diplomat Joel Roberts Poinsett spotted the plant, fell for its charm, and sent it home. The rest, as they say, is history—and botany.Desktop Version