A way to take your secrets to someone else's grave.

The magazine keeps a perfectly groomed display garden for its photo shoots.

A room hidden behind a swinging shelf in the children's section.

An unassuming secret door once led to a legendary watering hole.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

A modern English garden of eccentric beasts, follies, and oddities.

The Belgian royal family's private depot now stands abandoned and forgotten alongside the tracks.

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

What looks like missing grout is actually an old pub's peephole.

There's an exclusive Beefeaters pub hidden in the Tower of London.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

Their motto is, "We've been bonkers for hats even longer than you have!"

Solving a 60-year mystery finally gave a name to the young woman known only by the color of her clothes.

This stunning Connecticut mansion is actually just a one-room-deep hoax.

Friction between grains of sand cause a curious "singing" sound.

A beautiful Victorian-era cemetery, complete with a miniature village.

A music-filled, booze-soaked oasis in the desert.

Inside this small brick bungalow is a collection of toys intended for the afterlife.

The mysterious headstone of an unidentified bank robber was seen visited, every year, by a woman in black.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

The simple gravesite of a Romany clan leader is dotted with offerings, including cans of her favorite drink, Crush orange soda.

A carved grave marker from the 2nd century is mounted in the alcove wall of this Bavarian church.