A school teacher's massive and terrifying self-built castle.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district

One of the last remaining covered bridges in the province of Ontario.

A space-age 1950s pavilion on a secluded path is full of Toronto history surprises.

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

Lost subway station nestled beneath Toronto's busy commuter line.

This 317-ton walkable art installation is an homage to Korea's "City of Steel."

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

The absurd creation is a compulsory destination for selfies in Buffalo.

An Irish Memorial commemorating those who perished due to potato blight.

Commemorating the 1948 creation of the Jimmy Fund, a Boston-based cancer charity.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

These whimsical works of art tell the story of the city's past and present.

Dedicated to one of the darkest moments in Irish history.

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

This historic patch of real estate offers a glimpse of colonial Boston.

This monster fiberglass crustacean stands watch over the self-proclaimed "lobster capital of the world."

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

Keen eyes can find the Disney influences throughout this treasure trove of a tiki bar.

An exotic wildlife habitat right off The Strip.

The best Tiki bar in Las Vegas.