Movile Cave, Constanța County, Romania--The Movile Cave, a cave near Mangalia, Constanța County, Romania is notable for its unique groundwater ecosystem abundant in hydrogen sulfide and carbon dioxide, but low in oxygen; the cave is known to contain 57 animal species, among them a water scorpion (Nepa anophthalma), which sets the world record for being the World's Only Known Cave-adapted Water Scorpion, according to the WORLD RECORD ACADEMY.

Madrid, Spain--The Castellon writer Eloy Moreno has made history after he stamped 11,088 signatures at the end of twelve hours, in the offices of Penguin Random House publishing house and Callao Square, setting the new world record for the World's Largest Book Signing, according to the WORLD RECORD ACADEMY.

Westerly, Rhode Island, United States--Eleven-year-old Cooper Monaco was clamming with his grandfather last summer in Weekapaug, Rhode Island, when he discovered a giant quahog (clam); the quahog–measuring 5.75 inches across and weighing 2 pounds, 7.75 ounces, sets the world record for being the World's Largest Quahog, according to the WORLD RECORD ACADEMY.

Quinault, Washington, United States--With a circumference of 58 feet, 11 inches, diameter of 18 feet, 9 inches and 191 feet tall for a total of 922 AFA points, and estimated to be roughly 1,000 years old, with a total volume of 10,540 cubic feet and an impressive crown spread of 96 feet, the Big Spruce Tree at the Lake Quinault, Washington, sets the world record for being the World's Largest Sitka Spruce, according to the WORLD RECORD ACADEMY.

Lemmon, South Dakota, United States--The Lemmon Petrified Wood Park & Museum, a roadside attraction located off U.S. 12 in Lemmon, South Dakota, created in 1933 by Ole Quammen, a former mayor of Lemmon, features large outdoor sculptures created out of Mesozoic petrified wood; the park now contains 3,200 tons of petrified wood and 100 tons of petrified grass and takes up one 3-acre (1.2 ha) block in the center of downtown Lemmon, South Dakota, and sets the world record for being the World's Largest Petrified Wood Park, according to the WORLD RECORD ACADEMY.

Rogue River–Siskiyou National Forest in Oregon, United States--Near Grants Pass, in the southwestern part of Oregon, the Rogue River-Siskiyou National Forest is home to a giant Pine Tree named “Phalanx"; at 268.3 feet it’s as high as a 30 story building and set the world record for being the World’s Tallest Living Pine Tree, according to the WORLD RECORD ACADEMY.

Asheboro, North Carolina, United States--The North Carolina Zoo, formerly the North Carolina Zoological Park, is a zoo in Asheboro, North Carolina, housing 1,700 animals of more than 250 species, primarily representing Africa and North America; the Zoo is 75 miles (121 km) west of Raleigh, 25 miles (40 km) south of Greensboro , and 75 miles (121 km) northeast of Charlotte and is home to 1,700 animals of more than 200 species, thus setting the world record for being the World's Largest Natural Habitat Zoo, according to the WORLD RECORD ACADEMY.

Edwards, Mississippi, United States--A large cactus plantation located in Edwards, Mississippi a few miles off I-20, (owner John Thomas) filled several greenhouses with over 3,500 varieties of cacti, succulents, colorful bromeliads, daylilies, tropical foliage and seasonal plants; it set the world record for being the World's First Cactus Plantation, according to the WORLD RECORD ACADEMY.

Silver Lake, Minnesota, United States--The Giant Floating Loon floating on Silver Lake, Minnesota, the annual Land of the Loon Ethnic Arts and Crafts Festival, is fiberglass over a metal frame, tethered to the bottom of the lake by a long cable, far, far out in the water, spinning and bobbing merrily in the wind-whipped waves; it's 20 feet long, thus setting the world record for being the World's Largest Floating Loon, according to the WORLD RECORD ACADEMY.

Rothsay, Minnesota, United States--A giant Booming Prairie Chicken Sculpture, built by artist Art Fosse, is located in Rothsay on the west central plains of Minnesota; at 13 feet high, 18 feet long, and weighing 9,000 pounds, it sets the world record for being the World's Largest Booming Prairie Chicken Sculpture, according to the WORLD RECORD ACADEMY.

Fergus Falls, Minnesota, United States--Standing at 15 feet tall and roughly 40 feet long, Otto The Otter is a beloved mascot in Fergus Falls, Minnesota; it was built to honor Ottertail County, where Fergus Falls is the county seat; it is also the high school mascot and sets the world record for being the World’s Largest Otter Sculpture, according to the WORLD RECORD ACADEMY.

Pelican Rapids, Minnesota, United States--"Pelican Pete", a pelican sculpture constructed which was built in 1957 from concrete and plaster at the base of the Mill Pond dam on the Pelican River in Pelican Rapids, Minnesota, stands 15.4-foot (4.7 m) tall, thus setting the world record for being the World's Largest Pelican Sculpture, according to the WORLD RECORD ACADEMY.

Berlin, Maryland, United States--Occupying 2,200 square meters in Berlin, Maryland, United States, The Mermaid Museum (founder Alyssa Maloof), highlights the history of Mermaids by displaying artifacts and artwork; the museum is part history, part lore, and part treasure trove of oddities, setting the world record for being the World’s First Mermaid Museum, according to the WORLD RECORD ACADEMY.

Bethel, Maine, United States--The Maine Mineral and Gem Museum, a geology museum located in Bethel, Maine, United States, displays a collection of rocks, minerals, and meteorites; the museum holds 57,781 specimens, with 37,940 of those being minerals and the largest displays of lunar and Martian meteorites in the world, thus setting the world record for the World's largest collection of lunar and Mars meteorites, according to the WORLD RECORD ACADEMY.

Hawaii, United States--Scientists aboard NOAA ship Okeanos Explorer using remotely operated vehicles to explore some of the deepest areas of PMNM came across a sponge the size of a minivan; the giant sea sponge is close to 12 feet long and seven feet wide, setting the world record for the World’s Largest Sea Sponge, according to the WORLD RECORD ACADEMY.

Kotzebue Sound, Alaska, United States--A giant polar bear was observed at Kotzebue Sound, Alaska, United States; weighing a 1002 kilograms or 2,210 pounds and stood 11 feet 11 inches in height, it sets the world record for being the World's Largest Polar Bear, according to the WORLD RECORD ACADEMY.

Seeley Lake, Montana, United States--Visitors to Montana’s Jim Girard Memorial Tamaracks Grove near Seeley Lake, Montana, United States, can see a 1,000-years old tamarack known locally as Gus, a 163 feet high Larch Tree, with another 10-foot dead top, and a 273-inch circumference, which sets the world record for being the World's Largest Larch Tree, according to the WORLD RECORD ACADEMY.

Yellowstone National Park, Wyoming, United States--Yellowstone National Park, a national park located in the western United States, largely in the northwest corner of Wyoming and extending into Montana and Idaho, is known for its wildlife and its many geothermal features, especially the Old Faithful geyser; it spans an area of 3,468.4 sq mi (8,983 km2), comprising lakes, canyons, rivers, and mountain ranges and sets the world record for being the World's First National Park, according to the WORLD RECORD ACADEMY.

Belen, New Mexico, United States--The World’s Largest Matanza — the signature scholarship fundraiser for the Hispano Chamber of Valencia County, a day-long celebration of food, culture, music and community, invite teams to create the best carne adovada, red chile, chicharrones, liver dish and the always mysterious, Iron Pig dish, which is made with an unknown basket of ingredients given to each team on the day of the Matanza; the event sets the world record for being the World's Largest Matanza, according to the WORLD RECORD ACADEMY.