Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

A pyramid in Central Europe of unknown origin.

In the town of Třeboň, carp is king.