The mill building ruins, standing amidst vibrant foliage today, in stark contrast to the working mill pictured from 1905. The tree branches in each version look like they're reaching toward each other, attempting to bridge the century.
Here, the obvious ravages of time on the mill building are merely in the background of a starker contrast between the turn-of-the-century Edwardian woman and the 21st century automobiles.
This view of Walker Avenue, as seen from the bell tower of the Grace United Methodist Church, has changed hardly at all in the last 100 years.
The Thomas Hardware building has witnessed 100 years of progress, from the laying of sewer pipes to the selling of snowblowers.
The Gaithersburg train station also occupies the same space it did in 1911.
An unusual view in modern-day Montgomery County: a once-developed site swallowed by trees instead of replaced by a shopping center or a mixed-use development. Martin Thompson's homestead on Darnestown Road in 1907; empty wooded lot along Route 28 in 2023.
Veirs Mill Road spent decades as a rutted, muddy barely-two-lane dirt track, and took many more decades to transform into the four-lane divided highway it is today.
Though the C&O Canal has not been in active use for over 100 years, much of its infrastructure has been retained and maintained by the National Park Service. The lockhouses pictured below still stand and match their modern-day counterparts closely.
Above, the lockkeeper's house at Lock 25 (Edward's Ferry); below, Lock 24 and lockkeeper's house (Riley's Lock)
This photo-blend conceals an illusion: though the railroad tracks are the same, the building in the new photograph, serving as Barnesville's train station today, is completely different from the building that appeared on the right side of Lewis Reed's original photo of the Barnesville station standing in 1912. The original station building was torn down in the 1950s, replaced later with this historic brick metering station once owned by the Washington Gas Light Company .