Elevated freight railway turned wildly successful urban park.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

An enormous, inside-out glass globe built in 1935.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

A museum where visitors can learn about greyhounds and (more importantly) pet them.

Three markers installed over the course of 140 years mark the point where Arkansas, Missouri, and Oklahoma converge.

A large stone map of Arkansas awaits visitors to its highest point.

Town not known for anything except its strange name.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

An abandoned asylum incorporated into a college campus.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

The largest earthwork effigy in the world.

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

A monument marks the location of the first successful steamboat demonstration.

The highest point in Maryland is only accessible by hiking through another state.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.