An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

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

Experience what life was like in Ireland during the Viking and medieval ages.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

A particularly disconcerting tribute to Irish martyrs.

Some of the saint's blood and bones are said to reside in Dublin.

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

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

An emerald-green grotto just a short trip from Austin.

On the Oregon coast there is a natural hole that seems to be draining the sea.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

On Japan's Tashirojima Island, cats are king.

Rippling sand dunes frozen in the Arizona rock.

A psychedelic labyrinth on the San Francisco bay.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.