Mountain range stretching from New Mexico to British Colombia
Rocky Mountains
Notable college in Columbus, Ohio.
Ohio State University
Largest Vertebrate on Earth
Blue Whale
Patented by Alexander Graham Bell, this invention allowed people to instantly communicate over large distances.
Telephone
At its peak, this massive ancient empire spread from modern day Great Britain to Iraq.
Roman Empire
Lake Erie
Notable university whose sports teams are known as the Tar Heels.
University of North Carolina
Unlike most mammals, this group, including Kangaroos and Koalas, gives birth to tiny, underdeveloped young that finish growing inside a pouch.
Marsupials
In 1879, Thomas Edison famously perfected a long-lasting, practical commercial version of this everyday item.
Light Bulb
Largest, contiguous land empire ever, reaching its peak in the late Thirteen Hundreds.
Mongol Empire
Largest city in Canada.
Toronto
The only Ivy League college in the state of New Hampshire
Dartmouth
This organ, found only in fish, fill with gas to control buoyancy.
Swim Bladder.
Patented by Alfred Nobel in 1867, this highly explosive material revolutionized construction, mining, and warfare.
Dynamite
Empire famous for its hanging gardens, now one of the 7 wonders of the ancient world.
Babylonian Empire
Deepest lake in the United States.
Crater Lake
Largest university in the United States by in person enrollment.
Texas A&M
This protective protein makes up feathers, scales, and the claws/hair of mammals.
Keratin
This inventor created a system of dots and dashes that allowed messages to be sent over telegraph wires.
Samuel Morse
This empire, reigning from 250 to 900 CE, is known for its stepped pyramids and accurate astronomical calendars.
Mayan Empire
Largest state in Mexico.
Chihuahua
First institution of higher learning in the United States to admit women.
Oberlin College
Aside from the Platypus, this is the only mammal to lay eggs.
Echidna
In 1839, Charles Goodyear discovered the process of "vulcanization," which made this durable and heat-resistant.
Rubber
The Aztec capital of Tenochtitlan, an island in Lake Texcoco, is now the site of this modern day city.
Mexico City