This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A beautifully restored 19th-century house that’s possibly haunted.

The only brothel on the National Register of Historic Places.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

This strange statue features a bust of the famous composer plopped atop a woman's body.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.

Remnants of a 4th-century church with vivid medieval frescoes and ancient sarcophagi hide beneath this old basilica.

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

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

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

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The underground sanctuary of a mysterious ancient cult.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Ancient snack bar of the Roman Empire re-opened.