Illustration of the Dutch landmarks https://www.rawpixel.com/image/393659/houses-amsterdamView licenseWashington state capital background, vintage architecture illustration. Remixed by rawpixel. https://www.rawpixel.com/image/8836893/image-background-sky-vintage-illustrationView licensePalace of Culture and Science in Poland https://www.rawpixel.com/image/11927028/palace-culture-and-science-polandView licenseView of the Dome of the Capital from Washington Monument by Louis Fleckenstein https://www.rawpixel.com/image/14254050/view-the-dome-the-capital-from-washington-monument-louis-fleckensteinFree Image from public domain licenseVintage European style Eiffel Tower engraving https://www.rawpixel.com/image/586593/premium-illustration-vector-paris-cityView licenseSt. Petersburgh: a journal of travels to and from that capital. Through Flanders, the Rhenich provinces, Prussia, Russia… https://www.rawpixel.com/image/13994048/image-paper-horse-personFree Image from public domain license