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

A patch of contaminated land reclaimed as a scrappy sculptural oasis.

A massive Montreal stadium that has seen nothing but trouble since its inception.

A historic Montreal market that was the city's agricultural hub for over century.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

An ode to one of the first concerts broadcast via satellite.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A unique set of caves that spits waves back out into the ocean.

An underwater city for the dead.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

The most confusing clock in New York.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A castle on a hill once named "the most beautiful high school in Massachusetts."

This salad has two key ingredients: hearts of palm and green ice cream.

This French Canadian classic is a specialty of the oldest continually used church in Minneapolis.