This empire was ruled by Julius Caesar before becoming an empire under Augustus.
What is Rome? (The Roman Empire)
This gas makes bread rise when yeast ferments sugar.
What is Carbon Dioxide?
This detective lives at 221B Baker Street.
The largest mammal on Earth.
What is the Blue whale?
This singer scored a massive 1988 hit with "Don't Worry, Be Happy."
Who is Bobby McFerrin?
This empire built the famous road system that included the Royal Road.
What is the Persian Empire?
This ingredient helps cakes rise by producing gas when mixed with acid and moisture.
What is Baking Soda?
This teenage sleuth is accompanied by her friends Bess and George.
Who is Nancy Drew?
Germany's capital city.
What is Berlin?
"Come On Eileen" was the signature hit of this British band.
Who is Dexys Midnight Runners?
This emperor united much of China and ordered the beginning of the Great Wall.
Who is Qin Shi Huang?
This process gives grilled steak its browned crust and rich flavor.
What is the Maillard reaction?
This TV detective solved mysteries while pretending to be an absent-minded lieutenant.
Who is Columbo?
The German composer and musician who is considered a pioneer of modern classical music.
Who is Bach?
This 1980s group is best known for "Take On Me."
Who is a-ha?
This African kingdom, centered at Meroë, succeeded the Kingdom of Kush after Napata.
What is the Kingdom of Kush?
Egg whites trap this gas to create meringue's airy texture.
What is air?
This Belgian detective created by Agatha Christie is famous for his "little grey cells."
Who is Hercule Poirot?
This stringed instrument is the national instrument of Japan's bluegrass cousin? No—it's the four-string instrument common in Irish music.
What is the banjo?
This Canadian band's biggest hit was "Spirit in the Sky."
Who is Norman Greenbaum?
This 6th-century Byzantine emperor commissioned the Corpus Juris Civilis.
Who is Justinian the First?
This protein in wheat forms an elastic network that gives bread its structure.
What is gluten?
This medieval monk investigates murders in Umberto Eco's The Name of the Rose.
Who is William of Baskerville?
This 16th-century explorer became the first European to reach the Pacific Ocean from the Americas.
Who is Vasco Núñez de Balboa?
This singer's "Macarena" became a worldwide dance craze in the 1990s.
Who are Los del Rio?