Paintings of the Grand Gallery in the Louvre in Paris with a fair number of people milling around. French, painted by Hubert Robert who after managing to escape the guillotine ended up as the first “keeper of paintings” at the Louvre.

“Projet d’aménagement de la Grande Galerie du Louvre.” 1796. French. Oil on canvas. Collections of the Louvre Museum, Paris. In the public domain because the artist died over 100 years ago. via https://commons.wikimedia.org/wiki/File:Hubert_Robert_-Projet_d%27am%C3%A9nagement_de_la_Grande_Galerie_du_Louvre(1796).JPG
“The Grand Gallery in the Louvre, between 1801 and 1805.” Early 19ith c. French. Collections of the Louvre Museum, Paris. Image © Photos.com/Jupiter Images. Fair use license. via https://www.britannica.com/biography/Hubert-Robert

More picturesque and mostly fantasized places. Most of them looking too dramatic to be lived in. Fantasy architecture. French. Hubert Robert, artist. Living from 1733 to 1808, he was almost guillotined but by accident they got someone else. Romantic school.

Architectural Fantasy. ca. 1802-1808. Oil on canvas.
Architectural Fantasy. ca. 1802-1808. Oil on canvas. Collection of the Rhode Island School of Design Museum, Providence. Cc0 License 1.0. via https://risdmuseum.org/art-design/collection/architectural-fantasy-37104

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“L’incendie de Rome (le 18 juillet 64).” No date. In the public domain due to age. via https://fineartamerica.com/featured/the-fire-of-rome-hubert-robert.html?product=art-print

"The Teatro Delle Acque in the garden of the Villa Aldobrandini."  No date.
“The Teatro Delle Acque in the garden of the Villa Aldobrandini.” No date. Oil on canvas. Image © 2020 Sotheby’s. Fair use license. via https://www.sothebys.com/en/auctions/ecatalogue/2016/master-paintings-evening-sale-n09460/lot.54.html

Picturesque and mostly fantasized up ruins painted through a Romantic lens. French. Hubert Robert, artist. Living from 1733 to 1808, he was almost guillotined but by accident they got someone else.

"Fantaisie Egyptienne." 1760.
“Fantaisie Egyptienne.” 1760. Oil on canvas. In the public domain due to age. via https://pixels.com/featured/fantaisie-egyptienne-hubert-robert.html

"Le Pont Sur Le Torrent." 1780's.
“Le Pont Sur Le Torrent.” 1780’s. Private collection. In the public domain due to age. via http://pamayres.blogspot.com/2010/11/artist-hubert-robert-and-some-of-his.html

"Antiquities of Provence." ca. 1790-1800.
“Antiquities of Provence.” ca. 1790-1800. Oil on canvas. Private collection. In the public domain due to age. via http://spenceralley.blogspot.com/2010/05/robert-des-ruines.html

"Imaginary View of the Grand Gallery of the Louvre in Ruins." 1796.
“Imaginary View of the Grand Gallery of the Louvre in Ruins.” 1796. Collection of the Louvre Museum, Paris. In the public domain due to age. via http://spenceralley.blogspot.com/2010/05/robert-des-ruines.html