We "honor the victims of the anti-Semitic attack," tweeted Paris Mayor Anne Hidalgo.
Metal fencing has also been installed to stop vehicles from driving onto the grounds
"We're devastated," says circus statement.
Even hurricane-ravaged Puerto Rico, currently grappling with a crisis of its own, mourned with the city of Las Vegas.
The City of Lights dimmed its iconic monument to show solidarity with Catalonia.
I’m healthy and my sons are magnificent, so that makes me damn lucky.
The man was quickly stopped after trying to force his way into the tower on Saturday.
But they didn't have a clue who he was.
“Horror struck Sweden at its heart today," Paris Mayor Anne Hidalgo says.
Warning: This may kill your wanderlust for good.