Sitting in the heart of downtown Brunswick, Maryland, just steps from four active CSX mainline tracks and the Potomac River, the Brunswick Heritage Museum occupies a three-story brick building that has housed more history than its modest Main Street footprint would suggest. The 1904 structure — with its five tall narrow arches, Flemish bond brickwork, and dentelle cornice — was not built as a museum. It was built as a lodge, and the town it stands in was not always called Brunswick. It has been Eel Town, Berlin, Barry, and half a dozen other names across three centuries of continuous human settlement, each identity layered onto the one before it. The land along this stretch of the Potomac was home to the Susquehanna Indians when European settlement began in the early eighteenth century. The area was known as Eel Town because Native Americans fished for eel from the riverbank. A 1753 land grant from King George II planted the area firmly in colonial hands, and German immigrants followed in enough numbers through the 1780s that the settlement took the name Berlin. It remained a modest river trading post until the Baltimore and Ohio Railroad arrived and changed everything. In 1883, the B&O selected Berlin as the site for a massive new freight classification yard — the terrain was ideal, riverside bottomland was cheap, and the railroad was exempt from Maryland property taxes. The town was incorporated as Brunswick in 1890, and by 1907 the yard was complete: five miles of track, the largest and most modern classification yard in the country to serve a single railroad. A population of roughly 200 in 1890 swelled to an estimated 5,000 by 1910. Brunswick was, briefly, a boomtown. The building at 40 West Potomac Street was constructed in 1904 at the height of that boom, commissioned for the Delaware Tribe No. 43 of the Improved Order of Red Men — a fraternal organization whose roots traced to secret patriotic societies of the pre-Revolutionary era. The upper two floors served the lodge; the ground floor housed separate commercial tenants. A Native American statue stood at the building's entrance. The Improved Order of Red Men occupied the building until 1945, when the Fraternal Order of Eagles Brunswick Aerie No. 1136 purchased it, removed the statue from the entrance — it now stands on the museum's second floor — and operated there until 1969. The Brunswick Potomac Foundation purchased the building in 1974 for $30,000, paying off the mortgage through dollar donations and baked goods sales. The museum opened in 1980, focused initially on the railroad, and expanded its scope in 2013 to encompass the full arc of Brunswick's history. During the Civil War, Confederate forces used the area as a staging ground for raids into Maryland, and Union soldiers camped nearby after both Antietam and Gettysburg. Before the building became a museum, its third floor served as a dance hall where Patsy Cline performed for the Lions Club in the 1960s. The building itself carries three stories of accumulated human use across more than a century — fraternal lodge, dance hall, civic meeting space, and now museum. The architecture is straightforward brick commercial, but the interior has absorbed decades of different functions and different communities. The 1,700-square-foot HO scale model railroad on the third floor depicts the B&O Metropolitan Subdivision in meticulous detail. Elsewhere in the building, exhibits trace the town from its Indigenous roots through the canal era, the railroad boom, and into the present. The whole structure sits less than a block from active tracks, and the sound and vibration of passing trains are a constant undercurrent. Paranormal activity at the museum was described as occasional from the time it opened in 1980, but reports appeared to escalate in 2010 during construction on an elevator. The most consistent account across multiple independent sources is the apparition of a woman in a white dress — long-sleeved, ankle-length, described by at least one former resident as appearing to be from the Civil War era or earlier. She has been seen on the second floor and moving through exhibit spaces in rooms that should be empty. A former child resident of an apartment above the museum reported seeing the apparition repeatedly at night over the course of years, an account that surfaced only after adult investigators began documenting the building's activity. A second presence is described as a spirit who rearranges exhibits and interacts with the museum's collection — sometimes referred to as a ghostly curator. A third is associated specifically with the model railroad on the third floor, where the trains are said to start moving on their own and track switches reported to flip with no one near them. Skeptics will point to the building's age and constant low-level vibration from nearby rail traffic as natural sources for unexplained sounds and movement. A structure that has served as a fraternal lodge, dance hall, and community gathering space for over a century has absorbed a great deal of human energy, and the suggestion embedded in a location marketed as haunted is never insignificant. Investigators from multiple paranormal organizations have conducted formal sessions at the museum, with one 2017 expedition capturing what researchers described as statistically significant results from a random event generator and apparent direct radio voice responses to control questions using local and historical names. Today the Brunswick Heritage Museum is open to the public, free of charge, and operated as a nonprofit. It has been featured on regional ghost tours and included in guided haunted history routes through western Maryland. Whether visitors come for the model railroad, the Civil War history, the layers of fraternal lodge lore, or the woman in white reportedly still moving through the second-floor exhibits, the building at 40 West Potomac Street has more stories running through it than most places twice its size. Brunswick built itself around a railroad, and the museum built itself around Brunswick — and something in the building, apparently, has declined to leave.