The paintings, prints and photographs on this site are in the public domain. The images come from Wikimedia Commons; follow each link for the source file and its description.

Hamburger Kunsthalle. Public domain, via Wikimedia Commons.

Musée du Louvre, Paris. Public domain, via Wikimedia Commons.

Public domain, via Wikimedia Commons.

Public domain, via Wikimedia Commons.

Städel Museum, Frankfurt. Public domain, via Wikimedia Commons.

The Metropolitan Museum of Art, New York. Public domain, via Wikimedia Commons.

Mauritshuis, The Hague. Public domain, via Wikimedia Commons.

Kunsthistorisches Museum, Vienna. Public domain, via Wikimedia Commons.

engraving. Public domain, via Wikimedia Commons.

etching. Public domain, via Wikimedia Commons.

The National Gallery, London. Public domain, via Wikimedia Commons.

Sanssouci Picture Gallery, Potsdam. Public domain, via Wikimedia Commons.

Musée Marmottan Monet, Paris. Public domain, via Wikimedia Commons.

The National Gallery, London. Public domain, via Wikimedia Commons.

NASA. Public domain, via Wikimedia Commons.

Apostolic Palace, Vatican City. Public domain, via Wikimedia Commons.

stolen from the Isabella Stewart Gardner Museum, Boston, in 1990. Public domain, via Wikimedia Commons.

etching and aquatint. Public domain, via Wikimedia Commons.

Kimbell Art Museum, Fort Worth. Public domain, via Wikimedia Commons.

The National Gallery, London. Public domain, via Wikimedia Commons.

Skokloster Castle, Sweden. Public domain, via Wikimedia Commons.

Museum Georg Schäfer, Schweinfurt. Public domain, via Wikimedia Commons.

woodblock print. Public domain, via Wikimedia Commons.

engraving. Public domain, via Wikimedia Commons.
Sound
The audio edition is narrated by a synthetic voice: the Kokoro-82M text-to-speech model (Apache License 2.0), with pronunciation by misaki. See how the audio was made.
Type
Cormorant Garamond, Source Serif 4, Space Grotesk, IBM Plex Mono, Vazirmatn, Noto Naskh Arabic and Atkinson Hyperlegible, all under the SIL Open Font License (follow a name for its licence).
