- The Great Wall of China is visible from space, but only with the naked eye on clear days.
- The Leaning Tower of Pisa is not a freestanding tower, but is attached to the cathedral.
- The Colosseum in Rome was once used to house animals, not just for gladiatorial combat.
- The Taj Mahal in India was originally built as a tomb for the wife of Emperor Shah Jahan.
- The Eiffel Tower was originally intended as a temporary structure and almost demolished after the 1889 Paris Exposition.
- The Great Barrier Reef in Australia is not a single structure, but a collection of thousands of individual reefs.
- The Pyramids of Giza were originally covered in white limestone, now mostly worn away.
- Mount Everest is not the tallest mountain in the world, but it has the highest elevation above sea level.
- The Maldives is the lowest country in the world, with an average elevation of only 1.5 meters above sea level.
- The Amazon rainforest produces 20% of the world’s oxygen and is home to 10% of the world’s known species.
