Top Results for Flat Karst

The Trinidad Alfonso EDP Marathon Valencia is an annual marathon held in Valencia, Spain. Classified as a World Athletics Platinum Label event, the race follows a flat, fast circuit through the city and along its beachfront. The event, which typically takes place in late November or early December,...

The Chicago Marathon is one of the world’s premier marathon events held annually in October. It traverses the city's diverse neighborhoods offering a relatively flat course suitable for runners of all abilities. The race attracts over 40,000 participants including competitive athletes and recreation...

The Berlin Marathon is an annual marathon race held in Germany, consistently recognized as one of the world’s premier major marathons since 1974. Its flat course and consistent road surface have made it a favored location for achieving new world records across both men's and women's divisions. Runne...

Within Vietnam's Phong Nha-Ke Bang National Park, Son Doong contains enormous limestone passages shaped by an underground river. It is widely described as the largest known natural cave by volume, a distinction separate from having the longest connected network of passages. Vast chambers and areas w...

Ariocarpus kotschoubeyanus is a species of geophytic cactus native to the Mexican states of San Luis Potosí, Tamaulipas, and Querétaro, first described scientifically in 1842 by Prince Salm-Dyck. The plant is mostly subterranean in habitat, with a flattened, gray-green tubercle-bearing stem that sel...

The NN Marathon Rotterdam is an annual road race held in the Netherlands that has been organized since 1981. Recognized as one of the fastest marathon courses in the world, its largely flat terrain at or near sea level makes it highly attractive to elite runners aiming for record times, as well as m...

Near Montignac in France, the limestone cave of Lascaux preserves an extensive collection of Paleolithic paintings and engravings. More than six hundred painted figures include horses and large bovines, with animals dominating many of the decorated spaces. Often described as approximately 17,000 yea...

Phong Nha-Ke Bang National Park is a protected area in the Quảng Bình province of central Vietnam, sharing a border with the Hin Nam No Nature Reserve in Laos. Inscribed as a UNESCO World Heritage Site, the park is centered on a massive limestone karst plateau. It contains a vast network of several...

The Valencia Marathon (officially the Valencia Marathon Trinidad Alfonso) is an annual road race held in December in Valencia, Spain. Established in 1981, the flat, coastal course has earned a reputation as one of the world's fastest marathon routes, helping to set multiple world records including K...

The Triglav Massif is the highest mountain complex in Slovenia, situated in the Julian Alps and dominated by Mount Triglav, which rises to 2,864 meters. It serves as the centerpiece of Triglav National Park, the country's only national park, offering extensive alpine environments for mountaineering...

Protected within Vietnam's Phong Nha-Ke Bang National Park, this karst region contains limestone formations shaped by the long-term action of water. Its extensive cave systems include Son Doong, known for its exceptionally large passages. Surface rock formations and underground drainage belong to th...

The Gold Coast Marathon is an annual road race held in Queensland, Australia, typically in early July during the Southern Hemisphere winter. Established in 1979, the event features a flat, fast course that runs parallel to the Gold Coast's beaches, making it attractive to runners seeking personal be...

Dickinsonia costata is an extinct organism known from Ediacaran fossil deposits, particularly in South Australia and Russia. Its flattened, oval body is divided into repeated rib-like units extending from a central axis, and specimens range considerably in size. Its biological affinities were long d...

Southern France's Chauvet-Pont d'Arc cave preserves Paleolithic art within a limestone setting near the Ardèche River. Some of its paintings date to around 36,000 years ago, placing them among the early surviving examples of cave art. The imagery includes animals such as lions and rhinoceroses, with...

The TCS Amsterdam Marathon is an annual road race held in the Netherlands since 1975. Sponsored by Tata Consultancy Services, the event is highly regarded by distance runners for its fast, flat course, which frequently results in competitive finishing times. The route begins and ends inside the city...

The Zurich Maratón de Sevilla is an annual road marathon held in the city of Seville, Spain. Recognized internationally for its incredibly flat and fast course, the event is an ideal environment for elite runners and amateurs aiming to set personal records. The route takes participants past many of...

Picos de Europa is a limestone massif extending across the autonomous communities of Asturias, Cantabria, and León in northern Spain. The range is characterized by steep, rugged karst topography and includes Spain's first national park, established in 1918. It provides an important habitat for wildl...

High limestone walls enclose Big Lagoon on Miniloc Island in Bacuit Bay, near El Nido in Palawan. Its narrow approach opens into a broader body of turquoise water, giving the site a distinctive contrast between steep rock and sheltered sea. The surrounding karst formations are central to its appeara...

Off Belize's coast, the Great Blue Hole is a marine sinkhole within Lighthouse Reef. Its near-circular opening marks a limestone cave system that developed when sea levels were lower and was later flooded as the ocean rose. Submerged cave formations preserve evidence of that earlier environment. The...

Across Ha Long Bay in Vietnam, limestone towers rise from the sea as steep-sided islands separated by channels and sheltered water. These formations are examples of tower karst, created as water dissolved and weathered limestone over long periods. Changing sea levels and coastal erosion subsequently...

The Memphis Marathon is an annual road race held in Memphis, Tennessee, featuring a full marathon, half marathon, and a 10K race. The event is closely associated with St. Jude Children's Research Hospital, serving as a major fundraising platform that has generated millions of dollars for pediatric c...

The Frankfurt Marathon is an annual road marathon in Frankfurt am Main, Germany, first held in 1981 and known under sponsorship as the Mainova Frankfurt Marathon. Its urban course is generally flat and is used by elite and recreational runners seeking fast times. A distinctive feature is the indoor...

The Chevron Houston Marathon is an annual marathon held in Houston, Texas, typically in January, first run in 1972. The race features a flat, fast course through downtown Houston and surrounding areas, making it popular among runners seeking personal best times, and it has hosted the United States O...

The Shanghai International Marathon is an annual road running event held in Shanghai, China. Recognized as a premier marathon by World Athletics, the race attracts both elite international competitors and thousands of amateur runners. The course winds through the city's urban landscape, passing prom...

Veryovkina Cave is a deep limestone karst system in the Arabika Massif of Abkhazia, in the western Caucasus. A surveyed depth of approximately 2,212 meters was reported in 2018, establishing its reputation for exceptional vertical extent. Unlike a developed show cave, it consists of an expedition en...

In northern Spain, Altamira is a limestone cave celebrated for Paleolithic art, including bison and horses rendered with charcoal and mineral pigments. Its decorated surfaces preserve work produced during different periods of prehistoric occupation, rather than a single set of paintings all made app...

The Dong-A Seoul Marathon is an annual marathon held in Seoul, South Korea, first staged in 1931 and recognized as one of Asia's oldest marathon races. Organized by the Dong-A Ilbo newspaper, the event expanded over the decades into a major international road race. The course is known for being rela...

Discocactus horstii is a rare Brazilian cactus belonging to the Cephalium cacti group. It’s distinguished by the dense, woolly white cephalium that develops at its top during maturation. This species is endemic to specific regions of Brazil and faces endangerment due to habitat loss. It is primarily...

The Star Cactus, *Astrophytum asterias*, is a small, globular cactus native to Texas and northeastern Mexico. Its distinctive eight-ribbed star shape makes it an attractive ornamental plant. Due to habitat loss and overcollection, this species is federally endangered in the United States, primarily...