If you said 'Stonehenge', you were right!
Stonehenge is an ancient monument - which means it's something important that was built a long, long time ago.
It's also a World Heritage Site - which means it's famous all over the world.
Stonehenge is in England, in Wiltshire.
We are where the heart is on this map, and Stonehenge is just
Nobody knows exactly how Stonehenge was built, but they do know that the stones came from many miles away and were very very heavy!
Stonehenge has been in the news this week because the government has said that a tunnel for cars can be built to try to avoid traffic jams right next to it.
They've made a picture to show what it would look like when the tunnel was finished:
Some people don't like the idea of this. They think Stonehenge shouldn't have something like this so close to it.
What do you think?