Here, some curious facts about some of the best museums in the world...

MNBA: 

- Every 50 years, the artworks of the permanent collection must be varnished for safe-keeping...

Watch video here. 

- The museum is undergoing the digitalisation of its artworks. It's a process done in several stages. Below, a negative of Manuelita Rosas...

Negative of Manuelita Rosas, by Prilidiano Pueyrredón (1851)

Technique: oil on canvas / Measures: 199 x166 cm

MNBA

MALBA: 

- Eduardo Costantini bought "Retrato de Ramón Gómez de la Serna" by Diego Rivera (México, 1886-1957) in 1995 and saw it for the first time at the MALBA...

Portrait of Ramón Gómez de la Serna, by Diego Rivera

MALBA

GUGGENHEIM-Bilbao: 

- Claudia Cardinale, Jeremy Irons and Javier Bardem lent their voices for the audioguides of the museum. 

- All the artworks have a color code which marks the evacuation priority in case of an emergency.

VAN GOGH MUSEUM:

- Vincent Van Gogh (1853-1890) painted Garden of Daubigny on a napkin...

Garden of Daubigny, by Vincent Van Gogh (1890)

Technique: oil on canvas

Van Gogh Museum