A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

This water-locked cliff face is covered in hundreds of ancient pictographs.

A massive, fading granite poem is all that remains of one Whitman superfan's tribute to the famous writer.

These prehistoric replicas were based on actual skeletal remains.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

Picturesque intersection of witchcraft and ancient Christianity.

This castle has links to Portugal’s founding and struggles for independence.

Where a young athlete began his run across Canada after losing his right leg to cancer.

The first transatlantic wireless signal was received at this 17th-century fort.

A World War II gun battery sits at the easternmost point of North America.

Elaborate tile work in this railway station tells the story of Portugal.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

These locks on North America’s oldest canal are named after a porcine rock formation.

A sprawling Victorian farm that has been surrounded by a capital city is one of Canada's greatest treasures.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

A boardwalk winds above this beautiful bog full of wildlife and a rare type of turtle.

Louise Bourgeois' 30-foot-tall steel spider sculpture.