The site of the notorious Camp Sumter Prison is now a peaceful memorial.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

Two pillars set 10 paces apart commemorate the "last notable American duel."

The final resting place of the Emperor of the United States and Protector of Mexico.

The peaceful gravesite of a rugged wild west gunman echoes the touching story of his last days.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A plaque outside the San Jose airport commemorates the insect's arrival to the West Coast.

For roadside fast food, pull over at the giant orange.

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

America's first federal monument.

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

Of all the origin stories for weed's secret code, this one likely has the goods.

This infamous prison has a store where you can buy goods crafted by incarcerated people.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

Centuries of biking history are nestled in the shadow of the birthplace of contemporary mountain biking.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

The oldest orange tree in California spawned a generation of citrus farmers.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.

These small stands sell Malian snacks to worshippers and passersby after Friday prayers in Harlem.