Starts with K
SPACE FLIGHT & PIONEERS
INVENTIONS & INVENTOR
FAMOUS SQUARES
WORLD GEOGRAPHY
100

 A musical instrument that adds a buzzing timbral quality to a player's voice when the player vocalizes into i

What is a kazoo?

100
NASA stands for this.
What is National Aeronautics & Space Administration
100
Helicopter.
Who is Igor Sikorsky
100
Lower Plaza/Rockefeller Center.
What is New York City
100
The Great Barrier Reef is off the coast of this country.
What is Australia
200

Delicious candy bar 

What is a kit kat?

200
This was the first US Space Shuttle to fly in space.
What is the Columbia
200

Wireless telegraph

Who is Marconi?

200
Piccadilly Circus.
What is London
200
This country is the largest in South America by surface area.
What is Brazil
300

This condiment can be put on a hamburger, but NOT on a hot dog in Chicago.

What is ketchup.

300
This was the year a human walked on the moon for the first time.
What is 1969
300
Powered airplane.
Who is the Wright brothers
300
Parade Square.
What is Warsaw
300
This country has three national capitals.
What is South Africa
400

What you can use on stovetop to heat water for tea

What is a kettle?

400
This astronomer was best known for his theory that the earth revolves around the sun.
Who is Nicolaus Capernicus
400
Sewing machine.
Who is Isaac Singer
400
Zion Square.
What is Jerusalem
400
This country has the longest coastline in the world.
What is Canada
500

Common in Australia, this animal hops around

What is a kangaroo?

500
Robert Goddard is a scientist mostly associated with this.
What is Rocketry
500
Periodic table.
Who is Dimitri Mendeleev
500
Piazza San Marco.
What is Venice
500
This continent has the most independent countries (including island nations).
What is Africa