Europe's largest salt mine, located in Krakow, Poland, is a 287 km long underground city with living facilities.
In 1915, the Norwegian ship Tenacious was trapped in the Antarctic ice and could never leave, but the crew miraculously survived.
In the city of Catania, Sicily, a Roman theater has been buried by lava 17 times in the last 1800, and the city above has been rebuilt many times.
Stone sandals of the Kofun period in Japan, sandals were one of the accessories of the "kofun" built by the rulers of the time.
The giant cow on an Australian farm, it looks like the boss there, and every time it gets up, it is surrounded by its own kind.
The owl sitting cross-legged, in many religious cultures, the owl is considered a symbol of wisdom and is often associated with detachment and liberation.
Toronto's "Time Passes," combined with 16 shots, mostly sunset and a small part night.
In a top-secret exercise of the US special operations team during the Cold War, the MK54 atomic explosive bomb carried between his legs was equivalent to 1,000 tons of TNT.
More than 2,000 years ago, the fossilized bread of Pompeii, covered by volcanic ash, caused complete carbonization and blackening, forming a rare "food artifact".
Lake Tahoe, California, USA, at 1897 meters above sea level, is the largest alpine lake in North America, next to a green emerald bay.
After the bald eagle's wings are unfolded, the size is almost close to that of the car next to it.
The teaching and research center of the Medical School of São Paulo, Brazil, funded by the Jewish Chamber of Commerce and named after Einstein.
The saber-toothed tiger long-horned beetle, named after the ancient Cenozoic saber-toothed tiger, has clips similar to the saber-toothed tiger saber-like canine teeth.
The moment the rhino sprints at full strength, a lot of detail captured by the photographer in the distant woods with an $8,000 camera.
The inside of the water tower, the huge space below makes it feel like it can swallow everything at any time.
In Germany in 1945, although most of the buildings had been destroyed by the war, people still cleaned the roads.
The little Thai monk rides a buffalo, and despite his large size and fearsome horns, he appears very docile when he is with the little monk.
Volcanic lightning is a coincidental natural phenomenon in which volcanic magma and ash collide sometimes form a beautiful electric field like the figure below.
Monterrey, Mexico's second-largest city, faces pest infestation problems, which is evident on billboards.
The Alpine ibex has powerful hind legs that can stand up to eat leaves and easily jump between rock walls that are far apart.
Black bears catch big fish, black bears are more fierce than grizzly bears, the latter may only attack to protect the territory, while black bears attack is mostly plundering.
Mobile phones confiscated at the Texas Felons Prison, these prisoners have long sentences, so most of the mobile phones stay on GSM/3G signals.
The barrel-eyed fish, like a submarine with a glass front cover, has green tissue as its eyes and a hole in front as its nose.
The seat size of SpaceX Crew-5, this spacecraft mainly undertakes the manned mission of the International Space Station.