This country, landlocked in Southern Africa, is home to the Okavango Delta, one of the world's largest inland deltas.
Botswana
This ancient city, carved directly into rose-red rock in modern-day Jordan, was once a wealthy trade capital and is now a UNESCO World Heritage Site.
Petra
This psychological effect explains why we remember the first and last items best.
Serial Position Effect
In 1876, this inventor made the first telephone call, saying, “Mr. Watson—come here—I want to see you.”
Alexander Graham Bell
This NBA legend was cut from his high school basketball team, later saying, “I’ve failed over and over again, and that’s why I succeed.”
Michael Jordan
This Asian nation’s capital sits at an altitude of 7,382 ft (2,250 m) and is known as the “Mile-High Capital.”
Nepal
This ancient civilization built Machu Picchu high in the Andes mountains without using wheels or iron tools.
Inca civilization
This conditioning experiment used dogs and bells to study learning and reflex behavior.
Pavlov’s Dogs
This 17th-century scientist discovered refraction after reportedly discovering a broken window in his study
Sir Isaac Newton
This president failed in business, lost multiple elections, and suffered depression before becoming one of America’s most respected leaders.
Abraham Lincoln
This nation, once called Ceylon, produces some of the world’s best tea.
Sri Lanka
Known as the oldest written legal code, this Babylonian king created laws like “an eye for an eye.”
Code of Hammurabi
This disorder involves alternating between manic highs and depressive lows.
Bipolar Disorder
This 20th-century inventor developed alternating current, and inspired a car brand.
Nikola Tesla
He filed bankruptcy twice and was booed off stage early in his career—but later became one of the greatest stand-up comedians of all time.
Kevin Hart
The Scandinavian country with the world’s oldest monarchy.
Denmark
This ancient wonder, located in what is now Iraq, was said to be floating gardens built to please a homesick queen.
Hanging Gardens of Babylon
The area of the brain responsible for judgment, decision-making, and personality.
prefrontal cortex
This first artificial Earth satellite, launched by the Soviets in 1957, started the space race.
Sputnik
This athlete had a stutter, was arrested as a teen, lost his heavyweight title, and was banned from boxing for 3 years—but returned to win the championship again.
Muhammad Ali
With over 17,000 islands, this country is the world’s largest archipelago.
Indonesia
Located in Turkey, this city was said to have walls so strong, they withstood 23 different sieges before finally falling in 1453.
Constantinople
This psychological “bias” is when your beliefs make you notice only information that supports your views.
Confirmation Bias
In 1938, this scientist discovered nuclear fission, making the atomic age possible.
Otto Hahn
This actor lived in a van, struggled with depression, and was rejected over 1,500 times before landing his breakout role as the lovable goofball in Dumb and Dumber.
Jim Carrey?