The Ellipse in Washington, DC

William Shatter: "I'm drinking that water, dude. Until I get gaped by a gray" Alex Meade: "A stone engraved with the words us meridian 1890 is at the exact geographic center of the ellipse." John Sutter: "It refers to a plan by Thomas Jefferson to create an American prime meridian that ran through the front door of the White House" William Shatter: 'You'll probably get a you'll probably get another mysterious universe episode based off this one'