Williams Township. Built in 1798 as a milking barn, this three-bedroom house features a beamed and vaulted two-story great room, Venetian plastering, stone walls, custom woodwork, wide-plank floors, and a sitting-room fireplace. All bedrooms are en-suite; the partly unfinished second floor has a suite with a private entrance.

The 1.1-acre landscaped property includes a large walled courtyard, a pool with a patio, and an attached garage. $899,000. Art Mazzei, Addison Wolfe Real Estate, (610) 428-4885.

Pittsburgh. This 1791 farmhouse was restored using vintage local barn wood, mantels, ceiling beams, and stone. Built around an original log cabin, it includes four bedrooms; a living room, library, study, and sitting room; nine fireplaces; and a kitchen with Gaggenau wall ovens.

The 3.6-acre estate has a reconstructed stone-and-cedar barn and a playhouse. $2,999,000. Linda Dibucci, Piatt Sotheby's International Realty, (412) 850-5404.

Leola. Covered Bridge Cottage, a 1930 three-bedroom chalet, overlooks a creek and covered bridge. Recently renovated, it has a window-lined dining room, exposed brick, post-and-beam construction, wood and tile floors, and a wood-burning stove.

The property includes a covered deck with a chair swing and a waterside lawn surrounded by trees. $229,900. Dave High, Coldwell Banker, (717) 341-9259.

Pittsburgh. Pritzker Prize–winning architect Robert Venturi designed this two-bedroom home in Shadyside, near Chatham University. The open living space features a 20-foot-high "wheel" of south-facing, floor-to-ceiling windows, and a lofted bedroom area.

The lot includes an antique stone bridge. $1,100,000. Helen Eaton, Howard Hanna Real Estate Services, (412) 421-5068.

Philadelphia. This three-bedroom Old City condo is one of two units in a gut-renovated 19th-century cigar-box factory. It has an open-concept floor plan, wide-plank floors, skylights, a chef's kitchen with a 12-foot quartz island, an elevator, and 1,000 square feet of raw space with rights to create a second floor.

Outside are Juliet balconies, a 900-square-foot terrace, and four-car parking. $3,299,000. Lavinia Smerconish and Alon Seltzer, Berkshire Hathaway Home Services, (215) 915-2000.

Fayetteville. Located in the Michaux forest, this three-bedroom stone cottage, built in 1925, is part of the Totem Pole subdivision. The house features wood floors, exposed ceiling logs, wood-clad rooms, painted stone walls, and two fireplaces.

A balcony offers views of a creek and the surrounding woods. Shared amenities include a golf course, a picnic area, a pool, and parking. $190,000. Daniel Toomey, Coldwell Banker, (717) 552-8010.