Literally a million fascinating cartographic artifacts are held in this sprawling university collection.

A burial vault located under Tiber Island in the middle of the Italian capital.

An alchemist's "magic door" stands in the middle of a Roman park.

This delightful little museum is dedicated to only one thing: pasta.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

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

The first declared National Monument in the United States.

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.