The 20 Most Expensive Shopping Streets in the U.S.

6. Union Square in San Francisco

$650 per square foot

A 2.6-acre public plaza, Union Square offers a mix of local and national stores and upscale department stores like Neiman Marcus, Bloomingdales and Barneys. Its Maiden Lane features luxe brands like Chanel, Hermes, Marc Jacobs and Tory Burch.