Take a walk in Paris and enjoy the public garden, architecture, and free historical museum. Here are some places that you can enjoy without buying tickets ^^
Musee de la vie Romatique –> There are some free admission museum in paris, one of them is musee de la vie romantique
Pont Des Arts –> Love bridge with many locks, you can locks your love and throw the key to the seine river
Church and Architecture –> you can found many churches with beautiful architecture in Paris ex. Notredame, St. Germain, St.Eustache, Sacre Couer and this is free.
Canal and River –> In Paris you can enjoy the breeze besides seine river and some other canals such as canal st martin.
Paris City Public Garden and Public Space
Enjoy the view of Eiffel Tower from every side inside Paris City.