Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

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

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The longest fence in the world stretches over 3,000 miles to keep the dingoes out.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

A clear example of the process of erosion in action.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

Prehistoric park filled with the fossils of dozens of extinct species including Australian megafauna.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

The decommissioned submarine is now the symbol of a small, inland Australian town.

This giant dish located in a sheep paddock was the primary receiver of Apollo 11 TV transmissions.

A self-funded cemetery with a long list of inhabitants.

Come for the flowers, stay for the bats!

The largest necropolis in the Southern Hemisphere.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

Final resting place for hundreds of prisoners of war.

Three-story concrete ram with a permanent gift shop.

The gigantic preserved heart of a champion racehorse.

A little-known museum of Ancient Roman and Ancient Greek artifacts.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.