A remarkably opulent mansion with a tragic history.

Step back in time at this 1950s display home, built to showcase once cutting-edge electric amenities.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

A magnificent church designed by world-renowned architect, Frank Lloyd Wright.

An unfinished rail tunnel that has since been used to house cheese and bats.

These eerie outliers of the lightning bug family glow a mysterious blue color.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

This vast kitty-themed collection illustrates the history of human-cat interaction.

These pretty kitties killed and ate as many as 135 railway workers.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

A wedding chapel, vintage clothing shop, and bar all under one roof.

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

The fine fabric handwoven at Biltmore Industries was once coveted around the world.

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

A museum dedicated to the legacy of Bob Moog and his pioneering synthesizers.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

A well-preserved network of cavernous tunnels have spent silent centuries removing Toronto's waste.

The bizarre headgear looks like it was made for a fool, not a king.

Records of the dead describe the myriad odd ways people used to die.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

This natural history museum houses one of the world's largest rat kings, a terrifying jumble of tangled rodents.

Historic house-museum dedicated to the revolutionary gay graphic artist Tom of Finland.

A 19th-century smallpox cemetery is being reclaimed by scrub forest and sand dunes.