The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

A museum dedicated to the history and exploration of both popular music and science fiction.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

This sculpture forces visitors to confront their relationship with space.

A wall of chewing gum moonlights as collective art.

A colorful architectural gem in Seattle’s uniquely modern Central Library.

This working class sculpture pounds his hammer all the livelong day.

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

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Impossibly life-like natural history models created out of glass by a father and son.

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

This historic hotel was once home to Henry David Thoreau and rumored to be haunted by ghosts of fallen soldiers from the American Revolution.

A cable-suspension footbridge that hangs high above the Mill River.

A Borgesian work of art that may blur the line between fiction and reality a little too convincingly.

At the birthplace of American railroading, a world-class collection of historic trains.

A collection of birdhouses await curious motorists and avian squatters.

Floor-to-ceiling frescoes by local art students cover the interior of a nearly 200-year-old church.

The debris forms a solemn memorial to those who died in a 1963 accident.

The fire tower along this steep, scenic hiking trail offers the best views of Maine’s Moosehead Lake.

Mural fragments and various sculptures honor the longtime artist.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

Dine amidst exotic plants at this former royal greenhouse.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.