History
Technology
Geography
Landmarks
Inventions & Inventors
100

This holiday is celebrated on the 4th of July in the United States of America.

Independence day

100

This American invention uses a system of satellites originally developed for military navigation and is now used globally for mapping and location services.

GPS

100

Placed in the border between New York and Ontario, Canada, this world-famous trio of roaring waterfalls is a massive tourist destination and a major source of hydroelectric power.

Niagara Falls 

100

A gift from France to the United States in 1886, this massive copper monument stands tall in New York.

Statue of Liberty. 

100

Invented by American scientist Samuel Morse in the 1830s, this revolutionary communication system used a series of long and short electrical pulses—dots and dashes—to send messages across long distances.

Morse Code

200

Who was the first president of the United States?

George Washington

200

This company began in the 1990s as an online marketplace focused on books, before expanding into one of the largest global technology and retail platforms.

Amazon

200

Carved out over millions of years by the Colorado River in Arizona, this natural world wonder stretches 277 miles long and plunges over a mile deep into the earth.

Grand Canyon

200

Carved directly into the granite face of a mountain in South Dakota, this massive monument features the 60-foot-tall faces of four iconic US presidents.

Mount Rushmore 

200

In December 1903, these two bicycle-building brothers from Ohio made global history by achieving the first-ever sustained, controlled, powered flight of a heavier-than-air aircraft at Kitty Hawk, North Carolina.

The Wright Brothers

300

This 1787 document created the system of government used in the United States today.

U.S. Constitution

300

This area in California became synonymous with startups, venture capital, and major tech companies like Apple and Google.

Silicon Valley

300

This iconic Brooklyn seaside resort became the birthplace of the modern American amusement park in the late 19th century, featuring historic rides like the Wonder Wheel.

Coney Island

300

This world-famous, bright orange suspension bridge spans a one-mile-wide strait connecting the city of San Francisco to the Pacific Ocean.

Golden Gate Bridge. 

300

While he didn’t invent the automobile itself, this legendary industrialist revolutionized global manufacturing in 1913 by introducing the moving assembly line to mass-produce the Model T car.

Henry Ford

400

This 1930s economic crisis caused widespread unemployment and poverty in the United States.

The Great Depression

400

This digital currency was the first of its kind and is often used as a benchmark for all other cryptocurrencies.

Bitcoin

400

Holding the record as the lowest, hottest, and driest point in all of North America, this hyper-arid basin located within the Mojave Desert famously plunges to 282 feet below sea level.

Death Valley

400

This massive, 19-building Art Deco complex in Midtown Manhattan is a global media hub, famous for hosting NBC Studios and having a legendary outdoor ice-skating rink.

Rockefeller Center

400

In 1960, American physicist Theodore Maiman successfully built the world's very first working model of this device, single-color beam now used in everything from barcode scanners to surgery.

Laser

500

This war was fought between the North and South in the United States from 1861–1865.

American Civil War

500

GM’s flagship luxury brand, known for high-end sedans and premium SUVs.

Cadillac

500

This famous geographic feature in the western United States marks the mountainous line where water on one side flows toward the Atlantic Ocean, and water on the other side flows toward the Pacific.

Continental Divide 

500

This place is at the heart of Manhattan, and is one of the most beloved and visited public place, and has appeared it hundreds of famous Hollywood movies.

Central Park

500

Invented entirely by accident in 1945 by American engineer Percy Spencer while he was working on military radar technology, this appliance was born when a chocolate bar in his pocket suddenly melted.

Microwave Oven

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