Some are crazy, some look painful, some are kind of bizarre...but all of them are incredible. How much do you know about Guinness World Records?
The tallest dog (measured to the shoulder) ever was a Great Dane named Zeus in Michigan. Zeus was a whopping 44 inches tall -- that's more than 3.6 feet of slobbery, furry dog.
In 2014, Mathew Hine and David Anderson installed a Suzuki 600c engine onto a scooter and let loose at the Jurby Motodrome. The scooter zoomed to just over 107 mph
With proper training (and incredible stamina) humans can hold their breath for quite a while. In 2016, Spaniard Aleix Vendrell held his breath for 24 minutes, 3 seconds.
Kinner shouted "tor" (German for goal) for 43.56 seconds. Per Guinness requirements, he maintained a sound level of at least 80 decibels throughout the attempt.
In 1984, American Donald Stits flew a plane called Baby Bird, which had a wingspan of just 6.25 feet. It weighed 252 pounds, with a maximum speed of 110 mph.
In 2014, an Indian man named Devendra Suthar set the official record for greatest number of toes and fingers. Suthar has 28 fingers and toes thanks to a condition called polydactylism.
In 1879, a woman who was nearly 8 feet tall gave birth to a 22-pound baby boy. The boy lived just 11 hours.
In 1997, a British driver named Andy Green blasted across the Black Rock Desert in Nevada in a car called Thrust SSC. Green topped 763 mph, which is equivalent to Mach 1.020.
An American named Lee Redmond grew her nails to an incredible 28 feet, 4.5 inches. After years of dedication, Redmond lost her long nails due to injuries from a car wreck in 2009.
Redmond started her fingernail mission way back in 1979. That means she spent three full decades of her life carefully minding her unwieldy nails. After a car accident ruined her decades-long project, she confessed relief at finally being done with the too-long nails.
Multiple women in native tribes of Myanmar (formerly Burma) have achieved a neck length of more than 15 inches, thanks to a traditional practice of adding successive coils of metal rings. Because the process weakens the neck, removing the coils can prove to be fatal.
Panciera, a confessed ice cream addict, packed 121 scoops onto a single cone.
In 2008, a Michigan man proved that he had the world's longest working rifle. It measures 33 feet, 4 inches long and is mounted to the back of an old pickup truck.
In 2009, Canadian Kevin Fast used a back strap to pull a CC-177 Globemaster III more than 28 feet at an air force base. The weight of the plane? More than 416,000 pounds.
The man, Robert Wadlow, lived in the United States. In 1940, he was verified at an incredible height of 8 feet 11 inches.
At 8 feet 11 inches tall, Wadlow needed enormous shoes. He wore a pair that was more than 19 inches long -- officially a size 37AA.
Macaws are a type of parrot know for their strong beaks. Zac used his beak to crack open 35 cans in just one minute.
In 1913, the world record was set at -- you guessed it -- Death Valley in California. The temperature hit a scalding 134 degrees (56.7 C).
In 2014, an Alaska man topped 3 million miles on his 1966 Volvo 1800S. He drove more than 140,000 miles per year in the car, which still runs … and does not have air conditioning.
In the 18th century, a Russian woman gave birth to 69 children. She was "only" pregnant 27 times, as she had quadruplets four times, triplets seven times...along with 16 pairs of twins.
Takeru Kobayashi ate 12 hamburgers (including buns) at a show in Italy in 2014. One condiment was allowed -- he chose mayonnaise.
Alley launched 6 feet through the air, from one platform to another. The record was set in Austin, Texas in October 2013.
In 2008, a U.S. racehorse named Winning Brew galloped to 43.97 mph. It took her just over 20 seconds to cover an entire quarter mile.
French woman Jeanne Louise Calment was the person with the oldest verifiable age. She was born in 1875 and died in 1997, at an age of 122 years and 164 days.
American Cathie Jung began wearing corsets as a young woman because she was fascinated by Victorian clothing. She wears a corset almost all day, every day to maintain a waist of 15 inches.
In 2013, a Serbian man named Dalibor Jablanovic balanced 31 spoons on his face. Jablanovic has set more than two dozen Guinness Records in 10 different categories.
In 2006, a greyhound named Cinderella May A Holly Grey jumped 68 vertical inches, which is more than 5.5 feet. The feat was verified at the Purina Incredible Dog Challenge in Missouri.
In 2012, Italian Silvio Sabba found enough space on his face to attach 51 clothes pegs. One of the challenges of this record is finding enough loose skin to make the pegs stay in place.
In 2011, officials in Kansas City recorded the length of a reticulated python named Medusa. She was 25 feet, 2 inches long. Some wild individuals of this species have been known to grow in excess of 30 feet.
In December of 2008, Guy Schott completed 57 chin ups in 60 seconds at a YMCA in Santa Rosa, California.