The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

This replica of the Greek structure is in the heart of Nashville.

Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

An underground magnet for ever-changing street art.

This angular brutalist playground turns playtime into modern art time.

This "living building" on Georgia Tech's campus is home to a blueberry orchard, honeybees, and more than 900 solar panels.

A psychedelic tribute to one of Georgia's most unique artistic visionaries, out of place and time in the heart of Atlanta.

A colorful square marks the heart of the city's LGBTQ community.

This bar hosts an ever-evolving napkin art installation devoted to an American president.

This quirky curiosity shop takes its cues from the world's bazaars.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

"X" marks the spot of an echo chamber in the middle of a plaza.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.

Depending on who you ask, this controversial treehouse is either a charmingly creative child's playhouse or an illegal encroachment on public land.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

An early-19th-century hotel with a past that is steeped in the Civil War.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

An eerie smiling woman looms above the granite tombstones.

This twisty sign depicts the chain's first logo.

Paths are maintained, but trees have taken over plots.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.