Following episode 4, the characters venture outside Montmartre to visit places such as the Arc de Triomphe, the Eiffel Tower, the Louvre, Shakespeare and Company, Notre-Dame, and the Pont des Arts bridge.

Source: https://screenrant.com/heartstopper-season-2-filming-locations-explained/

On the same day, the monarch will also visit the Arc de Triomphe as well as meet with President Macron.

Source: https://www.dailyrecord.co.uk/entertainment/celebrity/king-charles-bans-food-item-30986353

That's why there's this whole Berlin part, and there's a lot more club fight, there's a lot more Arc de Triomphe, a lot more.

Source: https://collider.com/john-wick-chapter-4-first-cut-length-chad-stahelski-comments/