This wall fell in 1989, symbolizing the end of the Cold War.
What is the Berlin Wall?
This specialist focuses on the heart and circulatory system.
What is a cardiologist?
This sunny, yellow blossom is the state flower of Kansas.
What is the Sunflower?
Known as "The Killer Clown," he frequented children's parties.
Who is John Wayne Gacy?
This aquatic predator is the most common natural enemy of the Seal.
What is a Great White Shark?
He became the first Black president of South Africa in 1994.
Who is Nelson Mandela?
You’d visit this doctor for issues involving your skin or hair.
What is a dermatologist?
Both Ohio and Indiana claim this flower (specifically red for Ohio).
What is a carnation? (Ohio’s is the scarlet carnation; Indiana’s was the peony but previously the zinnia and carnation).
This unidentified killer sent coded ciphers to San Francisco papers.
Who is the Zodiac Killer?
This "Ghost of the Mountains" is the primary predator of the Blue Sheep in Central Asia.
What is a Snow Leopard?
This 1986 disaster was the worst nuclear accident in history.
What is Chernobyl?
This type of doctor treats the musculoskeletal system and bones.
What is an orthopedist (or orthopedic surgeon)?
Hawaii’s state flower is a yellow variety of this tropical plant.
What is a hibiscus (specifically the yellow hibiscus)?
Known as the "Night Stalker," he terrorized L.A. in the mid-80s.
Who is Richard Ramirez?
This pack-hunting carnivore is the primary natural threat to the Moose in North America.
What is a Gray Wolf?
The U.S. led "Operation Desert Storm" in this 1990-1991 conflict.
What is the Persian Gulf War (or simply the Gulf War)?
This specialist focuses on disorders of the nervous system.
What is a neurologist?
This mountain flower is the state symbol for Montana.
What is the bitterroot?
This "BTK" killer from Wichita, Kansas, sent taunting letters to police for decades before his 2005 arrest.
Who is Dennis Rader?
This massive reptile is the only predator capable of regularly hunting the Wildebeest at river crossings.
What is a Nile Crocodile?
This 1997 treaty was the first global agreement to cut greenhouse gases.
What is the Kyoto Protocol?
This doctor specializes in treating the endocrine system and diabetes.
What is an endocrinologist?
This fragrant, purple-flowered shrub is the state flower of both New Hampshire and Idaho (Syringa variety).
What is a lilac?
He operated a "Murder Castle" during the 1893 World's Fair.
Who is H.H. Holmes?
This clever canine is the chief predator of the Snowshoe Hare, though its population relies on the hare's cycle.
What is a Canadian Lynx?