The Thomas Viaduct, a National Historic Landmark, is a granite railroad bridge that spans the Patapsco River between Relay and Elkridge.

Howard County Conservancy connects more than 35,000 people each year to nature and its environmental education programs. Addresses: Mt. Pleasant Address: 10520 Old Frederick Rd Woodstock, MD 21163 Phone: 410-465-8877…

The Historical Society of Baltimore County has been around for 60 years, serving all generations with the bountiful knowledge of Baltimore County. Address: 9811 Van Buren Lane, Cockeysville, MD 21030…

The Granite Historical Society offers its visitors unique opportunities to explore, discover and appreciate the rich history of Granite and its locals. Address: P.O. Box 43 Granite, MD 21163-0043 Website

Located in the historic district, the Firehouse Museum explores the extraordinary challenges of fighting fires in late 19th and early 20th century Ellicott City. Address: 3829 Church Road, Ellicott City,…

The Elkridge Heritage Society seeks to preserve and raise awareness of all Elkridge Landmarks. Address: 5825 Main Street, Elkridge MD 20175 Phone: 443-620-3347 (443-620-3EHS) Website

The Diggs-Johnson Museum offers visitors the opportunity to appreciate and learn about Baltimore County’s African American Heritage and participate in educational activities. Address: 2426 Offutt Rd, Woodstock, MD 21163, United…

Opened in 1880, the building now serves as a resource center and a museum highlighting the history of African Americans in Howard County. Address: 8683 Frederick Road Ellicott City, MD…

The Benjamin Banneker Museum and Historical Park is a 142-acre site commemorating Benjamin Banneker, often considered the first African American man of science. Address: 300 Oella Avenue Catonsville, MD 21228…

The Patapsco Female Institute is a stabilized ruin, within the Patapsco Valley Heritage Area, located on the highest point overlooking Ellicott City. Address: 3655 Church Rd, Ellicott City, MD 21043,…

Founded in 1738, Belmont now hosts an array of events, including weddings, bar/bat mitzvahs, company picnics, and more. Address: 6555 Belmont Woods Rd, Elkridge, MD 21075, United States Phone: 410.313.0200…