Intertwined, interspecies trees which locals believe can grant boons to lovers.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

This metal disk commemorates the birth of a historic American holiday.

This preserved puppy was an adorable beacon of charity.

This is Britain's one and only clock concealed in the pavement.

Submerged lava formations create incredible waterworks.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

An ode to one of the first concerts broadcast via satellite.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

Taste rums made with heirloom sugarcane on the distillery's own estate.

This coastal cavern is associated with the Hawaiian god of creation.

An 1870s ranch for pioneers, rodeo stars, and divorcees was abandoned and left for dead, until the city reopened it for exploration.

An eerie smiling woman looms above the granite tombstones.

A 19th-century cemetery device to ensure that the prematurely buried would be "saved by the bell."

An abandoned munitions storage facility with a rich architectural history.

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

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

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

This fallen red oak tree has been transformed into a piece of trailside art.

A historic canal winds through a unique, swampy landscape.