Data from the Sharad (SHAllow RADar) instrument (on Mars Reconnaissance Orbiter), document that some of these glacial-like features, which you find at Mars' mid-latitudes, have a significant volume of ice left below a surface of rock debris.

BBC: Q&A: Liquid water on Mars

On a slightly lesser comedic level, the 50, 000-volume literary center has also recently installed lyrical works in Little Rock and New Orleans and hosted such notables as Anne Carson and Thomax Lux, shown above, reading poetry on the Brooklyn Bridge.

FORBES: A Poetry Bonanza in Lower Manhattan