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

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The ruins of a rehabilitation center for World War II vets can be found in the Westminster Ponds Conservation area.

Clusters of abandoned buildings hint at the facility's 144-year history with psychiatric health.

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

These strikingly barren, rolling red hills were caused by bad farming practices.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

305 homemade stone stairs wind their way up the Hamilton escarpment.

Toxic waste disaster that founded the Superfund program.

Genesis of modern hydroelectric power.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Soaring over the Niagara Whirlpool since 1916.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

Legend says that this short Canadian tunnel still holds the dying screams of a girl who burned alive.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

Priceless space junk on display in front of a local Dairy Queen.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

An abandoned stretch of highway, deteriorating next to the operational one.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.