Owen Lovejoy Homestead - Credit: Wikimedia Commons
The Owen Lovejoy House is a historic house museum on East Peru Street in Princeton, Illinois. Built in 1838, it was for many years home to Owen Lovejoy (1811–1864), a prominent abolitionist and congressman. Lovejoy, the brother of martyred abolitionist, Elijah Lovejoy, was an open operator of shelter and support on the Underground Railroad, and his house contains a concealed compartment in which escaped slaves could be hidden. It was declared a National Historic Landmark in 1997. and It is open seasonally or by appointment for tours. Read more on Wikipedia
Source: en.wikipedia.org