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

The final resting place of the poets Shelley and Keats.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

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

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

World's largest carved onyx figure stands as a tribute to enduring peace.

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

Just a man taking his prehistoric pet for a stroll.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The underground sanctuary of a mysterious ancient cult.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.