9 bài ở mức Dễ.
Alaska is disappearing slowly, but surely.
Certain birds are, more often than not, considered bad luck, or even a sign of impending death.
Since the early days of making movies, writers and directors have attempted to bring popular and classic novels to the big screen.
Most of the world's volcanoes lie along a vast Pacific ring — a dramatic zone where plate tectonics shapes the Earth.
When children lose baby teeth, cultures around the world have surprising traditions — from rooftops in Korea to the tooth mouse in Spain.
From ancient Egypt to the Renaissance, people have used makeup for beauty — and some ingredients were dangerously toxic.
Tropical cyclones are called typhoons in Asia and hurricanes in the Americas — and they spin around a calm center called the eye.
How much do you know about when people in England started cooking roast beef, or when tea first arrived from China?
A hotel in Quebec built entirely of ice and snow — open only in winter, with rooms, art, and even plates made of ice.