Breathtaking and huge 430 year old maps of Italy.

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

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

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

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

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

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

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

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

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

The celebrated eyesore created by starry-eyed sweethearts.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Less a museum than a bizarre fantasy world created by artists and engineers.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

Three-story concrete ram with a permanent gift shop.

This giant trout was made by a singular fisherman who wanted to honor his local trade.

The gigantic preserved heart of a champion racehorse.

For a century, the tallest building in Tasmania was a tower built to manufacture ammunition.

Concrete spud looks like the North American Sebago.

One of the first big sculptures anywhere in Australia.