Tubing through a cave lit with glowworms is a magical underground experience.

The first Russian Orthodox church in the Catholic city of Rome in almost a thousand years.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

This 16th-century monastery has been turned into a surrealist architecture compound.