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What did the Aztecs call their bitter chocolate drink?

What spice was once worth its weight in gold?

What geological feature causes many below-sea-level areas to exist on land?

Restaurant Curses and the Chefs Who Believed Them

Fjords That Are Deeper Than Mountains Are Tall

Lakes That Contain Islands That Contain Lakes Inside Them

U.S. Christmas Light Display Competitions and Electric Bill Nightmares

Medieval Castle Features You Never Knew Had Names

Computer Display Technologies: From CRT to OLED