Frontispiece (noun)

1. A decorative illustration or design that appears on the title page or the first page of a book.
2. A design or ornamental facade that serves as the entrance or face of a building.

Origin:

The word frontispiece comes from the french word 'frontispice,' which comes from the words 'front' and 'spece,' meaning 'face' and 'space,' respectively.

Examples:

1. The frontispiece of the book was a beautifully illustrated image of a castle in the sky.
2. The frontispiece of the building was a magnificent structure of stone and steel.
3. The architect designed a beautiful frontispiece for the new museum.
4. The publisher added a simple frontispiece to the novel to give it a more traditional look.
5. The frontispiece was the first thing that caught the reader's eye as they opened the book.