A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

Fantastic stainless steel dragon gates complete with mesh wings.

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

The house where the writer spent his formative years.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

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

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

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

This Bronx apartment building is officially recognized as the birthplace of hip-hop.

An activist who committed her life to peace and women's suffrage.

A monument stands to the famous suffragist who penned the declaration for women's equal rights, including the right to vote.

Final resting place of Typhoid Mary.

Legendary private island in the Bronx...devoid of rats.

A former connection to City Island, it has been abandoned since the 1930s.

Despite not growing anywhere near New York City, bananas are ripened in a pressurized room in the Bronx using precise banana science.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

Collect holy water from a Bronx grotto.

Small monoliths of several varieties of stone sit alongside a wooded path in the Bronx.

The famous author's cottage hideaway.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

The loneliest island in New York.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.