Artifacts can be things like Harriet Tubman's thimble, which allows the user to assume the face of another person, or Lewis Carroll's mirror (he was the dude who wrote Alice in Wonderland), which has young Alice Liddel trapped inside. Lizzie Borden's compact, Jimi Hendrix's guitar, Marilyn Monroe's hairbrush, you get the picture. Every artifact, however, has a downside, something that makes it dangerous and at times potentially life-threatening, especially in the wrong hands. Some things are made up, while others are based from famous people you may or may not have ever heard of.
So, yeah. Agents that save the world day after day, while going on crazy, at times funny, and seriously awesome missions to do so. Why aren't you already searching through Youtube looking for this?
-Claudia to Jinks, Season 4 Ep. 10
"FUCK YEAH, WAREHOUSE 13 CAME BACK ON, BITCHES LET'S GO."
-My friend, after the hiatus was over
"On the bright side, you'll finally be able to work off those extra pounds you've been griping over."
-Claudia and Artie, Season 1 Ep.12