WONDER #2333: What's the Most Expensive Thing in the World?

Question 1 of 3

According to this Wonder, what is the most expensive thing in the world?

1. Parking
2. New cars
3. Antimatter
4. A smartphone

Question 2 of 3

What caused the huia bird feather to be so expensive?

1. The feather represents friendship and respect.
2. The huia bird became extinct.
3. The feather was so beautiful that everyone wanted it.
4. It came from a bird that was owned by an ancient king.

Question 3 of 3

Which of the following is a potential use for antimatter?

1. Making floating beds
2. Cancer treatment
3. Spacecraft fuel
4. Both b and c

Check your answers online at https://www.wonderopolis.org/wonder/whats-the-most-expensive-thing-in-the-world.