The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

A quarter-scale locomotive wonderland built by one man and his family.

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

This shallow cave got its name from copious amount of human bones found inside.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A series of 33 stone markers maps an ancient 55-mile transportation route.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

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

Detroit’s downtown castle is one of the oldest structures in the city.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

This empty Detroit high school was too expensive to maintain or destroy.

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

The city is full of whimsical portals to another world.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

The final resting place of New England's last "vampire."

A steampunk wonderland that preserves America's history of industrial innovation.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

Beautiful steampunk ghosts of early Massachusetts.