He assembled the collection of early American tools now housed in the Mercer Museum.

The Bucks County Historical Society now owns Fonthill, which is open to the public, and the Mercer Museum.

Head back toward town and make a left onto Pine Street to reach the Mercer Museum, another castle-like concrete structure.

The stone is currently housed at the Mercer Museum in Doylestown, Pennsylvania.

The others include Fonthill, which is located on the same property and served as his home; and the Mercer Museum, located approximately one mile away.

The Mercer Museum, a structure built in poured concrete, is the home to Mercer's collection of early American artifacts.

Mr. Katsiff's subject is the 1914 castellated, precast concrete rooftop of the Mercer Museum.

She found a vampire-killing kit at the Mercer Museum, which included a pistol, silver bullets, a crucifix, a wooden stake, and powdered garlic.

Nevertheless, it has a way to go before it seriously rivals those already present, especially the Mercer Museum on the other side of South Pine Street.

The Mercer Museum is at Pine and Ashland Streets.