Octagon House
This unusual, eight-sided, cupola-topped house of interest to architecture buffs dates from 1861 and is maintained by the National Society of Colonial Dames of America. The architectural features are extraordinary, and from the second floor it is possible to look up into the cupola, which is illuminated at night. In the small museum, you'll find Early American furniture, portraits, silver, pewter, looking glasses, and English and Chinese ceramics. There are also some historic documents, including signatures of 54 of the 56 signers of the Declaration of Independence. Even if you're not able to visit the inside, this strange structure is worth a look.

Lombard Street
Known (erroneously) as the "crookedest street in the world," this whimsically winding block of Lombard Street draws thousands of visitors each year (much to the chagrin of neighborhood residents, most of whom would prefer to block off the street to tourists). The angle of the street is so steep that the road has to snake back and forth to make a descent possible. The brick-lined street zigzags around the residences' bright flower gardens, which explode with color during warmer months. This short stretch of Lombard Street is one-way, downhill, and fun to drive. Take the curves slowly and in low gear, and expect a wait during the weekend. Save your film for the bottom where, if you're lucky, you can find a parking space and take a few snapshots of the silly spectacle. You can also take staircases (without curves) up or down on either side of the street. In truth, most locals don't understand what the fuss is all about. I'm guessing the draw is the combination of a classic, unusually steep San Francisco street and a great photo op. FYI: Vermont Street, between 20th and 22nd streets in Potrero Hill, is even more crooked, but not nearly as picturesque.

The Exploratorium
Scientific American magazine rated the Exploratorium "the best science museum in the world" -- pretty heady stuff for this exciting hands-on science fair. It contains more than 650 permanent exhibits that explore everything from giant-bubble blowing to Einstein's theory of relativity. It's like a mad scientist's penny arcade, an educational fun house, and an experimental laboratory, all rolled into one. Touch a tornado, shape a glowing electrical current, finger-paint using a computer, or take a sensory journey in total darkness in the Tactile Dome ($15 extra) -- you could spend all day here and still not see everything. Every exhibit at the Exploratorium is designed to be interactive, educational, safe and, most important, fun. And don't think it's just for kids; parents inevitably end up being the most reluctant to leave. On the way out, be sure to stop in the wonderful gift store, which is chock-full of affordable brain candy.The museum is in the Marina District at the beautiful Palace of Fine Arts, the only building left standing from the Panama-Pacific Exposition of 1915. The adjoining park and lagoon -- the perfect place for an afternoon picnic -- is home to ducks, swans, seagulls, and grouchy geese, so bring bread.

Carriage Inn
The Carriage Inn offers the ultimate in Victorian style and charm. From finely crafted furnishings and bay windows to breakfast delivered to your room and free high speed internet access, you'll be delighted by our many services and ...

Marriott San Francisco Fisherman's Wharf
The San Francisco Marriott Fisherman's Wharf is located two blocks from Fisherman's Wharf and Pier 39 and just one block from cable car service to Union Square. This full-service hotel offers deluxe accommodations and superior facilities including fully equipped health club and sauna, lounge and restaurant, Starbucks coffee bar and seven thousand square feet of newly renovated meeting space. Indoor parking is USD 40 plus tax per night valet service only with in/out privileges. The garage ...

Petite Auberge
Pure romance. That's what people say about Petite Auberge, a charming European-style boutique hotel that combines luxury and charm in a stylish historic building. Petite Auberge, a 'small inn,' welcomes guests to a world of provincial enchantment. French doors with beveled glass, a collection of French art, a cozy parlor with a crackling fire and an afternoon wine and hors d'oeuvres await your arrival. A dedicated staff provides assistance in experiencing the city's best. A delicious ...