In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

This lurid German fountain plots the sad course of marriage from dating to death.

Wandering this ancient burial place offers a glimpse of the afterlife in the fresco-adorned tombs of an ancient Etruscan civilization.

This elegant arc of a waterfall marks a religious turning point.

Get buzzed beholding one of the world's largest coffee-machine collections, then step into the café for a specially brewed cup.

France's most famous cemetery, with some of its most curious tombs.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An unusual round church in London with a Templar past.

A massive underwater sinkhole made famous by Jacques Cousteau.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

A natural wonder in south Denmark.

Indents in the pavement are all that remain from a grisly death machine in Paris.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

Berlin's old airport.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The most loyal of little dogs, or a Victorian era publicity stunt?

A church that bred legends, and served as an inspiration for the Da Vinci Code.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The oldest church in Mantua was buried for centuries under the facades of other structures.

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.