Obscured but easy to find behind the only entrance to the Abbesses Metro station in the Square des Abbesses, the 10m by 4m wall is in a small gated garden long used by local mothers to promenade and play with toddlers but now increasingly by tourists who have heard of it.
And especially by lovers, who come to stare and sigh at the 511 blue tiles covered with the words "I love you" in 311 different languages.
We've had a picnic lunch on a park bench here at least 10 times over the past five or six years, enjoying the atmosphere and each other, and watching others, generally young couples, gaze at the wall in delight and awe.
Many self-consciously take a photo of each other with the wall behind; sometimes, they ask strangers like us to photograph them together.
Some couples settle in for a cuddling session on one of the plentiful benches, oblivious to passing local families and this middle-aged couple enjoying their meal.
The wall, built in 2000, is the brainchild of Parisian author and musician Frederic Baron, who collected more than 1000 written samples of "I love you" in various languages and dialects.
He and local calligrapher Claire Kito chose 311, and she transcribed each one on to the deep-blue glazed lava tiles.
Exotic languages represented include Amharic, Bambara, Catalan, Navajo, Occitan and Yiddish.
A close look at the tiles reveals among the many stylised scripts te reo Maori (kiate koe) and two South Pacific variations (E kuu alofa and Kau mamana ki le koe).
Inevitably, vandals have attacked some of the lower tiles but so far their handiwork is in keeping with the theme of the wall - professions of love from Marcel to Mimi, Charles to Elizabeth, Zoe to Phillipe etc, tributes added in white marker pen which are quickly flaking and fading beside the original text; each, though, such eloquent graffiti in its own way. - Robin Charteris.
