A collection of objects supposedly singed by the hands of souls in purgatory.

Inside this building is another country within Rome, a sovereign entity without a physical territory.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Architectural monsters are devouring this palace's every door and window.

The Pope’s secret escape route.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

Built in France in the 1400s, this gothic chapel now resides at Marquette University in Milwaukee, Wisconsin.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Though they might seem like arbitrary scratches in the wall, these were once official measures of length.

This soaring sculpture and Sioux Falls landmark represents the leap of faith taken to make one's dreams come true.

A small hippo-shaped fountain in Berlin, Germany.

Dozens of whimsical bear statues "hibernate" here during the winter months.

If you dare visit this fort, fire-breathing hyenas might devour your camels.

A breathtakingly steep set of stairs is carved directly into the face of the sea cliffs of Bonifacio.

One of the city's oldest pubs displays a skull said to belong to the country's last witch burned at the stake.

The Salvation Army's monument to those who lost their lives in a 1914 shipwreck near the mouth of the Saint Lawrence River.

A mosaic armchair and ottoman built from china broken in the Christchurch earthquakes.

This spectacular fault escarpment, a popular hang-glider launch point, extends some 30 miles long and towers about 2,500 feet over the valley floors to the west.

This small church was constructed over the ruins of three temples dating to the Roman Republic.