Rubens: Miracle of St Ignatz (1618) – Kunsthistorische Muzeum, Wien:

Vermeer: Malkunst (1666) – Kunsthistorische Muzeum, Wien:

Vermeer: The Astronomer (1668) – Louvre, Paris:

Klimt: Melo (1912) – Belvedere, Wien:

Paolo Uccello: Battaglia di San Romano/Part II (1456) – National Gallery, London:

Paolo Uccello: Battaglia di San Romano/Part III (1456) – Louvre, Paris:

Paolo Uccello: San Giorgio e il Dragone – National Gallery, London:

Klimt: Avenue Schloss Kaven (1912) – Belvedere, Wien:

See also:
The best paintings best ever seen