This actor played Iron Man in the Marvel Cinematic Universe beginning in 2008.
Who is Robert Downey Jr.?
Head north from the continental United States and you'll enter this country.
What is Canada?
Minions, lemons and school buses are commonly associated with this color.
What is yellow?
The planet famous for its prominent ring system.
What is Saturn?
At the Olympic Games, this medal traditionally goes to the first-place finisher.
What is a gold medal?
In The Wizard of Oz, Dorothy follows this colorful road toward the Emerald City.
What is the Yellow Brick Road?
Tokyo is the capital and largest city of this island nation.
What is Japan?
Despite its name, this potassium-rich curved fruit can also be green before it's ripe.
What is a banana?
In computing, these three letters stand for Central Processing Unit.
What is CPU?
Chemical symbol Au belongs to this precious metal.
What is gold?
This 1993 Steven Spielberg blockbuster brought a theme park full of cloned dinosaurs to the big screen.
What is Jurassic Park?
The ancient city of Machu Picchu is found high in the Andes of this South American country.
What is Peru?
The Beatles lived beneath the waves in a 1966 song aboard one of these colorful vessels.
What is a Yellow Submarine?
This number, approximately 3.14159, represents the ratio of a circle's circumference to its diameter.
What is pi?
California's population exploded after the 1848 discovery of gold sparked this famous event.
What is the California Gold Rush?
Before becoming Darth Vader, this Star Wars character was portrayed by Hayden Christensen in Episodes II and III.
Who is Anakin Skywalker?
The Danube flows through this European capital, famously divided into Buda and Pest by the river.
What is Budapest?
A lack of this pigment causes leaves to lose their green color and often turn yellow.
What is chlorophyll?
In genetics, these four letters abbreviate the molecule that carries most organisms' hereditary information.
What is DNA?
This precious metal with the chemical symbol Ag took second place to gold in the traditional hierarchy of medals.
What is silver?
This director won the Best Director Oscar for Titanic and later took audiences to Pandora in Avatar.
Who is James Cameron?
This tiny European country, surrounded entirely by Italy, claims to be the world's oldest surviving sovereign state.
What is San Marino?
Its chemical symbol is S, and this yellow nonmetal was historically known as brimstone.
What is sulfur?
Named for an Italian physicist, this SI unit measures electrical potential difference.
What is the volt?
This U.S. Army installation in Kentucky became so closely associated with America's gold reserves that its name is shorthand for extreme security.
What is Fort Knox?