A work of art that pays homage to a Victorian timepiece in Providence.

Mysterious 500-year-old tapestries depict a unicorn hunt.

More gold than anywhere else, ever.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A mysterious sculpture is hidden in Vancouver's Stanley Park.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The world's longest known cave system.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This bridge is haunted by the ghost of a distraught mother.

A Gothic gym and community space that encourages fitness for misfits.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

A rare view of a preserved Victorian science museum.

A toxic ghost town sitting atop a massive coal fire.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Home to items never before seen by the public.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

An annual extravaganza of Broadway theater memorabilia.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.