Allen built a mansion and country estate, called Mount Airy, on Germantown Avenue in 1750.

Washington's army was repelled and sent back down Germantown Avenue in defeat.

"The gap in quality between this store and the others on Germantown Avenue is big," she wrote.

As the Germantown village filled up, settlers began to move northwest along Germantown Avenue.

Much of modern Mount Airy was developed in the late 19th and early 20th centuries, spreading out from Germantown Avenue and two railroad lines.

Sporadic trolley charter trips ran down Germantown Avenue and into North Philadelphia until 2003.

In 1985 the college moved to 7500 Germantown Avenue in nearby Mt. Airy and then closed in the early 1990s.

Eight state historical markers are located on Germantown Avenue.

Even street numbers are on the west side of Germantown Avenue, odd numbers on the east.

It stands directly across Germantown Avenue from Cliveden, Benjamin Chew's mansion.