Next to a flagpole near the entrance of Green-Wood Cemetery in Brooklyn lies a large stone with a plaque designating the site historic landmark status.

This summer the spot starts a 100-plus mile historical scavenger hunt with a dozen locations. The hunt begins where the Battle of Brooklyn — or the Battle of Long Island — was fought in 1776 and stretches to the outer reaches of Montauk. The first-ever “Long Island History Hunt,” which launched July 1 and runs through Sept. 30, challenges participants to take a selfie at all 12 points. 

“We all love Long Island, but a lot of it has gotten paved over,” said Harriet Gerard Clark, the executive director of Raynham Hall Museum in Oyster Bay, which is featured in the hunt. The British occupied the hall in 1778 and 1789. “You can forget what actually happened here, so if you’re interested in history at all, which I think people should be, it’s a great way to learn by doing.”

The 12 sites — from Brooklyn to Montauk —  highlight a wide swath of Long Island history dating back centuries. 

Vernessa Kingsbury, associate director of the Shelter Island History Museum, said the site, known as the Havens House, was built in 1743. Elizabeth Havens ran a store and bargained with British troops on the Island while her husband, James, a privateer, fought in the war, according to Kingsbury and the Shelter Island Historical Society.

She said she sees the hunt as a way of “introducing people to this type of history.”

Museum officials said the hunt will likely take several days to finish and that each selfie location is outdoors. History hunters can continue the challenge even if a site is closed.

At the Meadow Croft Estate, Mary Bailey, president of the Bayport-Blue Point Heritage Association, said history-seekers can learn about the property’s relation to President Theodore Roosevelt, who spoke on its porch to constituents during a visit in 1903.

“Learning local history connects young people to their environment,” Bailey said. “They’re not just living in this world, they realize they are the future history.”

Kimberly Phyfe, the community engagement manager at the Three Village Historical Society, said the Setauket stop on the hunt focuses on the Battle of Setauket of 1777. It also highlights how George Washington’s Culper Spy Ring helped “turn the tide of the Revolution with intelligence.”

Most Long Islanders “would be incredibly surprised to hear that the Revolution took place in their own backyard,” she said.

At the final stop, the Montauk Lighthouse, participants can learn about the oldest lighthouse in New York and how Montauk was used as a quarantine camp by nearly 30,000 veterans of the Spanish-American War in the late-19th century. That group included former U.S. President Theodore Roosevelt.

“When I was a kid, I would have loved to have done something like this,” said Mia Certic, executive director of the Montauk Historical Society. “I think that it’s just a way of bringing it to life in a way that will stick with the people who participate."

The Robert David Lion Gardiner Foundation sponsors the event, which promotes its mission “to support the advancement of Long Island’s important role in the American experience,” said Kathryn Curran, executive director of the foundation.

The winner of the grand prize raffle will receive $500, a lunch at the Ketcham Inn in Center Moriches, family museum memberships and other gifts, according to the website for the scavenger hunt.

“The whole point of this history hunt is that no individual town has the history of the Revolution,” said Nanette Lawrenson, executive director of the Shelter Island History Museum. “We’re all connected.”