The enhanced transmission of electromagnetic waves through an opaque object is reported in this paper. The samples are constructed as two different configurations: a subwavelength metallic mesh sandwiched either between two metallic plates with periodic fractal slots (ABA for short) or between two plastic plates with periodic metallic fractals (CBC for short). Such ABA or CBC configuration exhibits multiple transmission peaks, indicating the wave penetrations through the opaque metallic mesh. The experimental observations and theoretical simulations demonstrate that the transmission enhancements for two configurations are induced by local resonances in the sandwiching layers.