Landscapes with another world out there feel. Mostly from the Symbolist school. Various times by various painters.

"Rocky Reef on the Sea Shore." 1824.
“Rocky Reef on the Sea Shore.” 1824. Oil on canvas. Collection of the Staatliche Kunsthalle, Karlsruhe. In the public domain in the United States because the artist has been dead over 70 years. via https://www.allartclassic.com/pictures_zoom.php?p_number=196&p=&number=FRC008
Serenity." 1904.
“Serenity.” 1904. Lithuanian. Painting. Mikalojus Konstantinas Ciurlionis, artist (1875-1911). In the public domain in the United States because the artist has been dead over 70 years. via https://commons.wikimedia.org/wiki/File:Mikalojus_Konstantinas_Ciurlionis_-_SERENITY_-_1904_-_5,_Varsuva.jpg
"Lake Keitele." 1905.
“Lake Keitele.” 1905. Finnish. Painting. Akseli Gallen-Kallela , artist (1865-1931). Image © Lahti Art Museum, Lahti, and the Viipuri Foundation. Fair use license. via https://www.abdn.ac.uk/news/12081/
Cliffside landscape. 1937.
Cliffside landscape. 1937. Oil on canvas. Otto Albert Hirth, artist (1899-1969). Image © Estate of the artist and 2019 MutualArt Services, Inc. Fair use license. via https://www.mutualart.com/Artwork/Symbolist-Cliffside-Landscape/4FF17A6D9907FFAD
"Winter Night in the Mountains." 1914.
“Winter Night in the Mountains.” 1914. Norwegian. Oil painting. Harald Oskar Sohlberg, artist (1869-1935). Collection of the Nasjonalgalleriet, Oslo. In the public domain in the United States because the artist has been dead over 70 years. via https://fineartamerica.com/featured/3-winter-night-in-the-mountains-harald-sohlberg.html