This postcard is of the Atomium, a remnant of the World Expo 1958 in Brussels.
According to Wiki, "Designed by André Waterkeyn, it is 102-metres (335 ft) tall, with nine steel spheres connected so that the whole forms the shape of a unit cell of an iron crystal magnified 165 billion times."
Well quite an interesting display don't you think? :)
This is a French painting, but I'm labeling this under "USA" as it's displayed at The Brooklyn Museum. It's called "Young Woman Overtaken by a Storm" .
"Taking shelter underneath a sturdy oak, an elegantly, if scantily clad young woman—perhaps separated from her party of nature-seekers—tearfully cowers as powerful winds whip at her gauzy attire. In this picture, exhibited at the Salon of 1799, Bonnemaison pays homage to the era's prevailing, classically inspired tastes: the young woman wears the high-waisted, muslin robe à l'antique and delicate cothurnes, or sandals, that became all the rage for fashionable French women in the 1790s. At the same time, the threatening storm—evidence of nature's force—hints at a nascent Romanticism and its embrace of the sublime." - http://www.brooklynmuseum.org/