Two paintings with a lot of history have just recently been unearthed.
El Mundo reports tax collectors in Spain found a lost painting - a van Gogh work dating back to 1889, according to art experts. Seals on the back indicate it has belonged to three different museums during its history.
The painting, titled "Cypress Sky and Country," was found in a Spanish tax offender's safety deposit box after it had been missing for almost 40 years. Nazis had taken the painting from a Dutch museum during their occupation of the Netherlands.
One of the painting's seals lists its last location as the Kunsthistorisches Museum in Vienna, Austria. It's unknown how the painting left that museum or whether it was stolen.
The painting's value is also unclear, but van Gogh had reportedly painted several similar versions of this artwork. One of them sold for $57 million dollars more than 20 years ago and currently hangs at the Metropolitan Museum of Art in New York.
Rare Van Gogh, Rockwell paintings uncovered
WASHINGTON, DC - June 29: A detail of 'First Trip to the Beauty Shop' 1972. Preview of the Norman Rockwell collection at the Smithsonian American Art Museum lent by Steven Spielberg and George Lucas. Shot Tuesday, June 29 2010, in Washington, D.C. (Photo by Katherine Frey/The Washington Post via Getty Images)
WASHINGTON, DC - June 29: 'Boy on High Dive' was the cover of the Saturday Evening Post in 1947. It opens the Norman Rockwell collection at the Smithsonian American Art Museum lent by Steven Spielberg and George Lucas. Shot Tuesday, June 29 2010, in Washington, D.C. (Photo by Katherine Frey/The Washington Post via Getty Images)
UNSPECIFIED - FEBRUARY 03: Santa Claus determine his itinerary depending on behaviour of children, painting by Norman Rockwell 1939 (Photo by Apic/Getty Images)
A US poster from World War II depicting a soldier manning a machine gun above the words 'Let's give him enough and on time', 1942. Poster by Norman Rockwell. (Photo by Galerie Bilderwelt/Getty Images)
This undated photo provided by Sotheby's in New York shows a Norman Rockwell painting, "Sport," that was discovered missing from a Queens storage facility, according to the New York Police Department. The oil painting was sold from a private collector in Birmingham, Ala., at a Sotheby's auction in New York on May 22. Police didn't identify the owner. (AP Photo/Sotheby's)
Sotheby's employees pose with a painting 'L'Homme est en mer' by Vincent Van Gogh on display at the auction house in London, Wednesday, Jan. 29, 2014. The painting is to be auctioned in Impressionist, Modern and Surrealist Art sale on Feb. 5 with an estimated price of 6 to 8 million pounds (US$9.9 to 13.2 million or 7.3 to 9.7 million euro). (AP Photo/Sang Tan)
Ein undatiertes Photo zeigt das Gemaelde "Weizenfeld mit Zypressen" des niederlaendischen Malers Vincent van Gogh. Das 1889 entstandene Werk ist als Leihgabe des Museums ' The National Gallery' in London auf einer Ausstellung unter dem Motto ' Vincent van Gogh und die Maler des Petit Boulevard' im Frankfurter Kunstinstitut Staedel zu sehen , die am Mittwoch 6. Juni 2001 eroeffnet wurde. Zu den Malern des 'Petit Boulevard' gehoeren unter anderem Paul Gaugin, Henri de Toulouse-Lautrec, Paul Signac sowie Camille und Lucien Pissarro. (AP Photo/HO/OPAK)
This undated image provided by the National Gallery of Art, shows "Green Wheat Fields, Auvers" by Vincent Van Gogh. The painting, that has been hidden away at a Virginia estate for decades, will have a new home at the National Gallery of Art. (AP Photo/National Gallery of Art)
In this photo provided by the Kroeller-Mueller Museum in Otterlo on Tuesday, Dec. 11, 2012 the 1889 painting "Portrait of Joseph Roulin" by Vincent van Gogh is seen. With the Van Gogh Museum in Amsterdam closed for renovations, the world's second-largest collection of the tortured Dutch master's work is stepping into the limelight. The lesser-known Kroeller-Mueller museum in the eastern Netherlands has revamped the layout of its central rooms, giving more space and focus to many of its top works. (AP Photo/ Kroeller-Mueller Museum)
In this photo provided by the Kroeller-Mueller Museum in Otterlo on Tuesday, Dec. 11, 2012 the 1887 painting "Self-portrait" by Vincent van Gogh is seen. With the Van Gogh Museum in Amsterdam closed for renovations, the world's second-largest collection of the tortured Dutch master's work is stepping into the limelight. The lesser-known Kroeller-Mueller museum in the eastern Netherlands has revamped the layout of its central rooms, giving more space and focus to many of its top works. (AP Photo/ Kroeller-Mueller Museum)
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Another famous painting was brought out of storage in Massachusetts after it hung in a school principal's office for 50 years.
According to WBZ-TV, the painting dates back to 1941 and was a gift to the principal from the artist Norman Rockwell.
The original painting depicts World War II, a recurring character seen in other paintings as he rides with soldiers in the back of a military vehicle. According to a Rockwell Museum official, they didn't even know it existed.
The Boston Globe reports Rockwell gave the principal the painting as a gift for graduating seniors. It was then put into storage in 2001 when school officials feared it would be stolen.
The painting will be auctioned off later this month with 10 other Rockwell paintings at Sotheby's in New York. It was estimated to be worth at least $1.5 million.
A previous Rockwell painting titled "Saying Grace" sold for a hefty $46 million in December. It appeared on the Saturday Evening Post's cover in 1955.
The mayor and school officials plan to use the money from the auction to start a foundation benefiting schools.