San Mateo, located in the heart of the San Francisco Bay Area, offers a diverse array of urban exploration opportunities that are sure to captivate any adventurous spirit. From abandoned buildings to hidden street art, there's no shortage of unique and off-the-beaten-path experiences waiting to be discovered. With the help of our crowdsourced list, you'll uncover the best kept secrets of this vibrant city and immerse yourself in the rich history and culture that defines San Mateo.

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