The Defense Advanced Research Projects Agency has been tasked with building breakthrough technologies for the US military since 1958, and plenty were on full display at the Pentagon last week.

Tech Insider went to DARPA's "Demo Day" on May 11 where more than 60 projects were shown to reporters, senior military leaders, and government contractors. We saw everything from underwater drones that autonomously search for enemy submarines to a game-changing prosthetic hand that looks like it's straight out of "Terminator 2."

There was a ton for us to see in the Pentagon's courtyard, but these are the ones we thought were most interesting.