Geography
this is the only country whose coastline touches both the Mediterranean Sea and the Atlantic Ocean via the Strait of Gibraltar on the European side.
Spain
This is the only letter that does not appear in any U.S. state name.
Q
This was the shortest war in recorded history, lasting under 40 minutes, fought between Britain and Zanzibar in 1896.
Anglo-Zanzibar War
his composer wrote his famous Symphony No. 9 entirely after becoming completely deaf.
Beethoven
his is the only number that is both a perfect square and a perfect cube in a single digit
one
This African nation shares a border with more countries than any other on the continent — nine in total.
Democratic Republic of the Congo
This is the only food that never spoils, having been found edible in 3,000-year-old Egyptian tombs.
honey
this Roman emperor famously appointed his horse, Incitatus, to the position of consul.
Caligula
This Spanish architect's unfinished basilica, La Sagrada Família, has been under construction since 1882.
Antoni Gaudí
This is the hardest naturally occurring substance on Earth, ranking 10 on the Mohs scale
diamond
his landlocked microstate is entirely surrounded by Italy and is the world's oldest surviving sovereign republic.
San Marino
his is the only planet in the solar system that rotates clockwise on its axis, as viewed from above its north pole.
Venus
This 1648 treaty, ending the Thirty Years' War, is often cited as establishing the modern concept of state sovereignty.
he Peace of Westphalia
This Japanese woodblock print, part of a series of 36 views, is technically titled "Under the Wave off Kanagawa.
"The Great Wave" (by Hokusai)
This element has the highest melting point of any metal, used in incandescent light bulb filaments.
tungsten
This river shares its name with a country, is the only major river to flow both north and cross the equator twice, and empties into the Atlantic.
the Congo River
This is the only mammal that cannot jump.
elephant
This African kingdom's ruler is considered by some historians the wealthiest person in recorded history.
Mansa Musa (ruler of the Mali Empire)
This painter's "Nighthawks" depicts a late-night diner and is one of the most recognized images in American art.
Edward Hopper
This phenomenon describes light bending as it passes from one medium to another, quantified by Snell's Law.
refraction
This is the only sea in the world with no coastline, bounded entirely by ocean currents rather than land.
Sargasso Sea
This is the only U.S. state name that can be typed using only one row of a QWERTY keyboard.
None
This was the last country to abolish slavery, doing so officially in 1981 (not enforced by law until 2007)
Mauritania
This ballet composer wrote the score for "The Rite of Spring," whose 1913 premiere reportedly caused a riot in the Paris audience.
Igor Stravinsky
This particle, theorized to explain the imbalance between matter and antimatter, has never been directly observed but is central to leptogenesis theory.
(Majorana) neutrino / sterile neutrino