Now: Valencia Street runs parallel to Mission Street, one block over, and they could be versions of each other in alternate universes. In the Valencia universe, the hipsters arrived to rule with a chimeric hand. Don't stop until you've at least seen Clarion Alley, just south of 17th Street.
Then: The Valencia corridor has undergone dramatic revival since the decline of the neighborhood in the 1960s.
How To Get There: Take BART to 16th/Mission and walk one block west on 16th to Valencia. Or start at 24th/Mission (also from BART) and go north on Valencia (one block west). Or connect via 18th Street, which hits the center of the Valencia commercial corridor. If you're driving and can't park anywhere else, there is a garage on 21st Street between Valencia and Mission.

Valmar Liquors, near the intersection of Valencia Street and Market Street

Bodhi Vietnamese Cuisine, on Valencia Street at Duboce Avenue

Pauline's Pizza, on Valencia Street near 14th Street

Valencia Street at 16th Street

Arinell New York Style Pizza, on Valencia near 16th Street

Mariachi's Mexican, on Valencia

Valencia Street near 16th Street

Luna Park, on Valencia at 17th Street

Frjtz - fries and crepes, on Valencia at 17th Street

Range - American Dining, on Valencia Street near 19th Street

Mission Playground and Pool, bordering Mission Street between 19th and 20th Streets

Mission Pool, on the 19th Street side at Linda Street

826 Valencia Street, near 19th Street

The Pirate Shop inside 826 Valencia

Osha Thai Restaurant, on Valencia near 19th Street

City Art Cooperative Gallery, on Valencia near 19th Street

Borderlands Sci Fi and Fantasy Books on Valencia between 19th and 20th Streets

Modern Times Books on Valencia Street

House on 20th Street near Valencia

Mirrors outside a Frame Shop on Valencia Street

X21 Modern - vintage furniture and decor, on Valencia near 20th Street

Herbivore Vegetarian Restaurant, on Valencia near 21st Street

Dosa on Valencia, near 21st Street

Jay's Cheesesteak, on 21st Street near Valencia

House at the corner of Bartlett Street and 21st

Lexington Street, near 21st Street

Udupi Palace, also serving dosas, on Valencia just south of 21st Street

Xanath Ice Cream

Valencia, between 21st and 22nd Streets

Spork, on Valencia between 21st and 22ns Streets

22nd Street at Valencia Street

22nd Street at Bartlett Street

Escape From New York Pizza, on 22nd Street between Valencia and Mission

Yotopia, on 22nd Street between Valencia and Mission Streets

The Make-Out Room, on 22nd Street near Mission Street

Beretta, Italian Dining and Bar, on Valencia at 23rd Street

Beretta, on Valencia at 23rd Street, in the daytime

Valencia Street at 24th Street

CCSF Mission Campus on Valencia

Tiled mural on Valencia at 25th Street

Anthony's Cookies, on Valencia near 25th Street

Clooney's Pub, on Valencia at 25th Street

Toad's Pub, on Valencia at 26th Street

Construction on Valencia Street between 15th and 19th Streets is scheduled to continue until Summer 2010