The many interesting antiques shops here vouch for the authenticity of old Spanish and Puerto Rican furniture, clocks, and bric-a-brac.
There aren't any antique shops to be found. 
mnli hypothesis: There aren't any antique shops to be found.  premise: The many interesting antiques shops here vouch for the authenticity of old Spanish and Puerto Rican furniture, clocks, and bric-a-brac.