This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Hidden among the multi-million dollar mansions in the Santa Cruz hills is a sanctuary for troubled birds.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

On a wall in linear London, a plaque hangs at the high water mark of one of the worst floods in fictional Kcymaerxthaereal times.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

A kaleidoscopic warehouse-maze of handmade neon signs.

These machines have been collecting dust for decades.

The seamy, underground secrets of Portland's criminal past.

What appears to be an act of fruit vandalism is actually a cultural statement.

Glacial erratic or man-made dolmen? It probably wasn't druids.

This forlorn park is the result of a failed investment turned tax dodge.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

Once a dumping spot, now a park with a kayak launch.

Tucked in the back of this amazing antique store is an important piece of medical history.

A jewel of early electric boosterism once again charms Connecticut's historic "Hat City."

The location of the pie company that gave a classic toy its name is now a parking lot.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.

This last stalwart of the now-forgotten feminist restaurant movement has been serving food in an activist atmosphere since 1977.

These Benedictine nuns have been making artisanal cheeses since before it was cool.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

More gold than anywhere else, ever.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.