The inscribed stone at Kilnasaggart is a remnant from nearly a millennium ago.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

Northern Ireland's Brobdingnagian stepping stones.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The heads of two giant mythological water horses honor Scotland's horselord past.

Macbeth's infamous "Great Birnam Wood."

The most loyal of little dogs, or a Victorian era publicity stunt?

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

The modern birthplace of Irish freedom.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The oldest public library in Ireland.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

The world's most active stratovolcano is almost always erupting.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Thousands of well-dressed mummies below a monastery.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

Every inch of this chapel is covered in craftsmanship from across the world.

A study of Fascist era Art Deco design in Italy.

An enormous, inside-out glass globe built in 1935.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.