Ancient mysteries
This ancient civilization built Machu Picchu high in the Andes
What is the Inca civilization?
This is the deepest known point in Earth's oceans, located in the Mariana Trench
What is Challenger Deep?
This galaxy, also known as M31, is the nearest major spiral galaxy to the Milky Way
What is the Andromeda galaxy?
This country is completely surrounded by South Africa
What is Lesotho?
This 1941 film directed by Orson Welles follows the life of Charles Foster Kane
What is Citizen Kane?
This writing system of ancient Egypt was deciphered with help from a stone discovered in 1799
What are hieroglyphs?
These marine animals have three hearts and blue, copper-based blood
What are Octopuses?
This boundary around a black hole marks the point beyond which nothing can escape
What is the event horizon?
This city lies on both the European and Asian sides of the Bosporus, though Türkiye's official capital is elsewhere
What is Istanbul?
This Japanese filmmaker directed the 1954 monster film that introduced the giant creature Godzilla
Who is Ishirō Honda?
This Indus Valley city is famous for its Great Bath and sophisticated urban planning
What is Mohenjo-daro?
This process allows deep-sea organisms to produce light through chemical reactions
What is bioluminescence?
This law states that a planet sweeps out equal areas in equal times as it orbits its star
What is Kepler's second law?
This African country has coastlines on both the Atlantic and Indian Oceans
What is South Africa?
This 1927 science-fiction film by Fritz Lang features the futuristic city of its title
What is Metropolis?
Daily double: This ancient Greek device, recovered from a shipwreck in 1901, modeled astronomical cycles using gears
What is the Antikythera mechanism?
This ocean zone, extending roughly from 1,000 to 4,000 meters deep, is also called the midnight zone
What is the bathypelagic zone?
This hypothetical boundary around a rotating black hole allows energy to be extracted from its rotation
What is the ergosphere?
Daily double: This country has the exclave of Nakhchivan, separated from its main territory by Armenia
What is Azerbaijan?
This Italian director made the 1960 film La Dolce Vita
Who is Federico Fellini?
This ancient Anatolian capital was the center of the Hittite Empire and is located near modern Boğazkale, Türkiye
What is Hattusa?
This underwater mountain chain is the longest mountain range on Earth
What is the mid-ocean ridge system?
This cosmic background radiation is the cooled remnant of the early universe, observed at about 2.7 kelvin
What is the cosmic microwave background?
This sovereign country is doubly landlocked, meaning all its neighbors are also landlocked
What is Uzbekistan?
This 1929 Luis Buñuel and Salvador Dalí short film is famous for its surreal imagery and dreamlike narrative
What is Un Chien Andalou?