A sculpture serving as an homage to Pope John Paul II.

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

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

The Pope’s secret escape route.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The mummified relic of St. Antoninus.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Ancient snack bar of the Roman Empire re-opened.

Pilgrimage site for star-crossed lovers.

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

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

The middle finger of modernity.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The footprint of a frustrated devil in Munich's Cathedral.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Giant topiary dog once played a role in a terrorist bomb plot.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Single runway interrupted by a busy road that cuts across its middle.

The final resting place of the great navigator, or maybe his brother.

The world's largest wooden structure.

A 16th-century Andalusian palace.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

A Christian retreat founded to welcome refugees fleeing from the Nazis during World War II.