90/100 of Stockholm’s subway stations are decorated with art — sculptures, mosaics, paintings, engravings, and reliefs by over 150 artists — much of which dates back to the ’50s.

AT 110km long, it’s said to be the world’s longest art exhibit. Check out this slideshow for a sample of what you can see if you visit.

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Stockholm subway art

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Stockholm subway art

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Stockholm subway art

Intermission
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Art in subway stations around the world

by Kristin Conard

23 colorful images of art and architecture in Oakland, CA

by Hal Amen

The story behind Cape Town’s newest street mural

by Deva Lee
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Stockholm subway art

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Stockholm subway art

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Stockholm subway art

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Stockholm subway art

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Stockholm subway art

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Stockholm subway art

Intermission
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Paris’ surprising street art [PICS]

by Matt Scott
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Shut down in Egypt: One artist’s story of struggle and oppression

by Becky Hagan-Egyir

New York’s most famous pun-based street artist tells all

by Matt Hershberger
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Stockholm subway art

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Stockholm subway art

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Stockholm subway art

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Stockholm subway art