This empire, once larger than the Roman Empire, was ruled by Genghis Khan.
Mongol Empire
This medium stored movies before VHS and was played with a laser.
LaserDisc
This “purple” villain wiped out half the universe with a snap.
Thanos
The Fibonacci sequence often appears in these natural objects.
seashells or sunflowers
This horse from Greek mythology had wings and could fly.
Pegasus
The Cadaver Synod in 897 put this Pope on trial after his death.
Pope Formosus
Before floppy disks, this magnetic tape-based storage medium was used in computers.
Punch tape
This rapper's "death" in 1996 sparked a decades-long theory that he's alive.
Tupac Shakur
This mathematical concept explains why no map can avoid at least four colors.
Four Color Theorem
In Japanese folklore, this fox spirit can have up to 9 tails.
Kitsune
This country was known as Abyssinia until the mid-20th century.
Ethiopia
This Apple device flopped in 1993 but predicted the iPhone.
Apple Newton
The game Polybius is rumored to have caused hallucinations and memory loss. It supposedly appeared in arcades in which decade?
the 1980s
This paradox shows that a set can be both infinite and smaller than another infinite set.
Hilbert’s Hotel
This South American cryptid is rumored to suck the blood of livestock.
Chupacabra
The "Dancing Plague" of 1518 occurred in this European city.
Strasbourg
This 18th-century machine could “play chess” but was secretly operated by a person.
The Turk
This cryptic David Lynch series featured “The Black Lodge.”
Twin Peaks
This mathematical object has only one side and one edge.
Möbius strip
This creature from Mesopotamian myth is part lion, eagle, and human.
Lamassu
In 1859, this country "accidentally" went to war with itself.
Paraguay
This ancient Greek analog computer was used to predict astronomical positions.
Antikythera mechanism
This ARG (Alternate Reality Game) featured hidden puzzles in YouTube videos and referenced the Illuminati.
Cicada 3301
This unsolved problem asks whether every even number greater than 2 is the sum of two primes.
Goldbach Conjecture
This Icelandic Christmas cat eats children who don’t wear new clothes.
Yule Cat (Jólakötturinn)