The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

The neighborhood shop is a sort of tiny cactus museum full of exotic specimens you can take home.

The last of its kind in the country.

Gift shop offering toe tags and chalk body beach towels tucked into a coroner's office.

The Largest Little Museum in the Northwest.

A Studio on the Fringes of the Northeast Art District.

A treehouse assailed by the elements and the government, now gone.

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

An old soap company building now houses one of Minneapolis’s oldest independent non-profit art galleries.

A luxury hotel constructed out of a former jail.

A facility built in 1992 for an underground nuclear test remains in place today.

Glasgow's oldest pub has a proud literary tradition and possibly a ghost or two.

An amalgam of precariously balanced boulders, ancient petroglyphs, and Buddhist shrines.

Beautiful scenery, history, science, and physics come together in this remnant of shipping lore.

The ruins of a 19th-century corn mill are haunted by a malevolent cave-dwelling spirit.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

Gold, silver, copper, lead, and zinc were once extracted at this abandoned mine near Lookout Mountain.

The precious-metals strikes dating back to the 1860s are now mostly inactive, but this area has become the United States' only domestic source of lithium.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

This former lieutenant governor's home is brimming with curiosities.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.