The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

A chessmaster's dream destination.

A giant open-air sculpture made of over 200 full-sized boats.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

This historic recreationist school churns out warriors that may very well have had a fighting chance in Rome's pits of the day.

The Pope’s secret escape route.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A Nesting Doll of Churches.

Jesus' footprints and the first catacombs in the world.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The underground sanctuary of a mysterious ancient cult.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A medieval weapon rumored to have been used by the brilliant poet himself.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

A lover's walk between hilltop towns, decorated with graffiti love notes.

The bomb-ravaged remains of of a colossal Neptune.

Five candy-colored villages on the Italian Riviera.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

The glowing blue Nymphaeum of Emperor Tiberius.