The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

The plague quarantine island home to the alleged "Vampire of Venice."

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Electrical curiosity museum housed in an old transformer station.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

One of seven Jewish catacombs in Rome and one of only two open to the public.

A Nesting Doll of Churches.

Jesus' footprints and the first catacombs in the world.

The underground sanctuary of a mysterious ancient cult.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

A beautifully eclectic mix of architectural styles.

The attic of a four-century-old canal house hides a clandestine church.