The Tin Woodman cuts down a tree to use as a bridge across a large ditch.
Explore these websites and videos to find out more about bridges around the world.
First, here are some of the most unusual bridges in the world.
Here are some of the oldest bridges in the world, some of them still being used, despite being thousands of years old.
The Millau Viaduct in France is much more modern, and is also the tallest bridge in the world.
And of course, Scotland has some beautiful bridges: here are some of the most famous.
Challenge yourself!
Can you solve the bridge riddle? How can you and your friends escape over the bridge before the zombies catch up?
You can also look at the Help with Challenges page to come up with your own bridge challenge.
