Your house is fully furnished, and everything’s elegant and understated, or at least aspires to be. Now it’s time to show off your quirkier side. Luckily, San Francisco is home to many stores with one-of-kind antiques and objets d’art, where, for a pretty penny, you can let the true you shine through.

Busacca Gallery is a bit like your grandma’s attic—if your grandma were a high-end art collector and a packrat. Walk in, and your heart will beat with material lust for Lalique crystal, tiny carved boxes, and eccen­tric items like animal horns and hides. Mark Busacca himself is a treasure trove of information: Not only does he know the price of every object in the store—for instance, a cast-bronze replica of a 2,000-year-old Pompeiian statue ($9,600)—but he can tell you about its maker and history in great detail. 2010 Hyde St., 415-776-0104, busaccagallery.com

Therien 20th, a new depart­ment of Therien & Company, has one of the country’s highest-quality collections of distinctive 20th-century furniture, lighting, and accessories. Located right around the corner is Blackman Cruz, a cult favorite of decorators, film stars, and stylists for its unusual and eccentric finds. Treasures include a pair of mercury glass table lamps designed by Ricardo Legorreta in 1968 for the Camino Real Hotel in Mexico City, a 1958 sofa by Poul Kjaerholm, and a delicate hourglass, circa 1950, by Paolo Venini. Therien 20th: 411 Vermont St., 415-956-8850, therien.com; Blackman Cruz: 2021 17th St., 415-934-9228, blackmancruz.com

Conor Fennessy’s eclectic taste runs the gamut from museum-quality antique furniture to modern folk art of uncertain provenance—but his cool San Francisco–related items are the most intriguing. A recent visit turned up a marvelous floor lamp that, according to Fennessy and film stills, decorated Lauren Bacall’s Telegraph Hill apartment in the 1947 classic Dark Passage; while a copy of an 1892 social register revealed the names and addresses of post–gold rush bluebloods, including the Flood, Crocker, Huntington, and Hopkins families. 801 Columbus Ave., 415-673-0277, conorfennessy.com

Top California interior designers count on Antique & Art Exchange for its vast collection of Chinese porcelains, Provençal chairs, Swedish Gustavian benches and chairs, Venetian mirrors, French cabinets, Spanish desks, Georgian chairs, and more. Lucky for us, the public is also allowed into the Exchange’s six spaces. With prices starting at $400 for a large-scale French wine jar made of green glass, you can only imagine where they end up. 151 Vermont St., 415-522-3580, antiqueandartexchange.com