What to expect: Across from the waterfront, this creatively converted brick warehouse is a virtual dry-dock cruise liner. The nautical-themed lobby sports navy-blue deck chairs, a replica of an astronomer's clock above the fireplace, decorative sails, a whimsical fish-patterned rug, and shipshape plank floors. The Maritime National Historic Park Visitors Center shares the 1907 building; admission is complimentary.
Amenity highlights: Stylish and family-friendly, this boutique hotel brims with charm and personality.

The Blue Mermaid Chowder House & Bar, just off the lobby, features six savory chowders, including the award-winning Dungeness Crab & Corn Chowder. Weather permitting, guests can dine alfresco on a patio facing Del Monte Square.

The Argonaut hosts a wine reception each evening.

Complimentary wireless Internet access is available in public areas.

Insider tip: The big, boisterous Laffing Sal automaton, the Kiss-O-Meter, and elaborate mechanical dioramas such as the Carnival and the Farm (with 150 moving figures and objects) are just a few of the wonders of the Muse Mcanique, one of the areas lesser-known treasures. Admission is free; a quarter or two will bring these old-time marvels to life. The museum is at Pier 45, about four blocks from the hotel.

What to expect: Established in 1904, this grande dame hotel presides over Union Square in the heart of the city. The magnificent lobby is a destination unto itself, with dazzling chandeliers, stately columns, and soaring coffered ceiling. The gracious and knowledgeable concierge staff includes members of the prestigious Les Clef d'Or. Guests over the years have included U.S. presidents, international royalty, and movie legends. Amenity highlights: The elegant Michael Mina restaurant, winner of multiple awards, showcases refined American cuisine and an extraordinary collection of more than 3,000 wines. Seasonal selections pair a primary ingredient, prepared three ways, with a trio of accompaniments. The Royal Doulton china was personally designed by Chef Mina.

La Stone Therapy Massage and the Pacific Pleasure Sea Salt Glow are among the treatments available at the hotel's acclaimed spa.

Insider tip: For spectacular views of the city, take a glass elevator to the top of the hotel's tower. The elevators climb 32 stories along the exterior, providing one of the last great, free thrill rides in town.

The years have not diminished the grandeur of this historic hotel or its lobby, which has vaulted gold-leaf ceilings, scrolled wrought-iron railings, and crystal chandeliers. Large murals depict scenes from the life of the adventurous English sea captain for whom the hotel is named. An eclectic clientele of business and leisure travelers return for the elegant setting and location near Union Square.