An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

An Irish peat mine has become a stunning sculpture park.

A retired military stronghold on the rolling green coast of Donegal.

The world's only flying boat museum honors a small Irish village that sent 20th-century aviation to new heights.

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

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

An eccentric inventor's castle home with its own indoor weather system.

A comic book store got the road by its shop officially renamed after Superman's girlfriend.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

A mysterious stone embedded at the base of a historic Boston building.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

A historic bridge with a lovely acoustic anomaly.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

The site of Paul Revere's historic two lantern warning.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.