A signer of the Declaration of Independence, Paca (pronounced "PAY-cuh") was a Maryland governor from 1782 to 1785. His house was built from 1763 through 1765, and its original garden was finished by 1772. The main floor (furnished with 18th-century antiques) retains its original Prussian blue and soft gray color scheme and the second floor houses more 18th-century pieces. The adjacent 2-acre garden provides a longer perspective on the back of the house, plus worthwhile sights of its own: upper terraces, a Chinese Chippendale bridge, a pond, a wilderness area, and formal arrangements. An inn, Carvel Hall, once stood in the gardens, now planted with 18th-century perennials. You can take a self-guided tour of the garden, but to see the house you must go on the docent-led tour, which leaves every hour at half past the hour. The last tour leaves 1½ hours before closing.