This single room has survived the centuries with almost no deterioration.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

The ancient tomb acts as a calendar that keeps perfect time.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

This bridge was constructed from the rubble of the infamous Bastille.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Ancient snack bar of the Roman Empire re-opened.

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

This 1st-century CE Roman bath sits under a carpark.