Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

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

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

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

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The glowing blue Nymphaeum of Emperor Tiberius.

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

2300-year-old Roman road connecting the empire.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A Nesting Doll of Churches.

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

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Two stone columns flank the grand Venice square, but there were supposed to be three.

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

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Pilgrimage site for star-crossed lovers.

This Italian foot path winds through the mountains via 52 individual tunnels.