In a slow climb up the winding spiral stair of the Barnegat Lighthouse, this vent is part of a system to manage airflow within the tower architecture. A beacon on the northern tip of Long Beach Island, New Jersey, for the past 182 years, "Old Barney" was first constructed in 1835 and remained in operation until 1944 when it was deactivated. On January 1, 2009, at the 150th anniversary of its opening, the lighthouse was re-lit and is currently open for tours.

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