These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A bizarre house filled with an astounding array of collections.

A miniature representation of Canadian cities and landmarks in incredible—and sometimes hilarious—detail.

This Toronto garden collects stares and tchotchkes in equal measure.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

One of the oldest living oak trees in the Southeast.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Extraordinary objects lurk in this quintessential regional museum.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

The bones of an old zoo crumbling in the shadow of a new one.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Inside the Wayne County airport is an amazing collection of lights and sounds.

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

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

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

A collection of human remains, animal body parts, and other macabre curiosities all legally for sale.