When the temperature breaches the century mark, where better to head than underground? That’s precisely what the folks over at iStrategyLabs did — recording a small team’s stroll through Dupont Underground, the long-empty streetcar space beneath Dupont Circle which once housed a food court and has been the target of revitalization efforts in recent years. You can check out the other videos from iStrategyLabs’ trip into the cavernous underground at their website — all that’s missing, really, is a score from The Jam.