The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

A memorial to 350 people burned at the stake for witchcraft.

A favorite with sightseers and locals alike, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

The last fully functional fortress of Germany's World War II Atlantikwall.

An opportunity to walk in the footsteps of Nobel Peace Prize winners.

In a city of wooden houses, this watchtower was vital for early fire detection.

Herman Melville wrote 'Moby Dick' in this landmark 18th-century house surrounded by farmland.

An anonymous art project beneath Longfellow Bridge where hundreds of trophies line the steel support beams.

This magnificent work of art captures the spirit of the region.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

This observation tower is a longstanding, 1960s landmark in the Thousand Islands region of Canada.

Pluto is still considered a planet in Ithaca, New York.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

An 80-year-old house built out of newspapers.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Beach instrument turned bed and breakfast.

This art display in Dedham honors a local fish, and is dedicated to the volunteers who restored the canal.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.