A piece of baseball history is preserved in a Pittsburgh parking lot.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The roadway bend where highway painters practice their craft looks like expressionist art.

An architectural marvel built by a nearly forgotten Canadian Quaker sect, the Children of Peace.

Known as the "Kissing Bridge" for its privacy, it also happens to be the last covered bridge in Ontario.

This massive, ancient stone was disassembled and then put back together again.

A Victorian cemetery hidden along a trucking route is all that remains of a 19th century village.

Known as "Toronto's Flatiron."

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

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Just outside this metal recycling center stands a prehistoric creature composed of scraps.

The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

Canada's subterranean Cold War museum has doubled as a movie set.

This knick-knack-covered house (complete with a matching van) is a charming oddity in the middle of a modest downtown neighborhood.

This former big box store has been reimagined as a massive public art space.

Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

This Toronto garden collects stares and tchotchkes in equal measure.

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

This unique bridge has been a staple across the Saskatchewan River Valley for more than 100 years.

An outdoor installation of 20 vintage signs that once hung in front of businesses throughout town.

The New Central Library is a masterpiece of contemporary architecture in the midst of downtown Calgary.