The sign at the garden gate reads: "These Plants Can Kill."

Started as a kitchen garden, now the second largest botanical garden in the world.

A hidden sculpture garden tucked within the middle of Brighton.

This memorial to the thousands of Indian dead during WWI was callously used for target practice during WWII.

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

A private selection of curiosities, carefully curated by a young Brighton local.

This tunnel entrance is built to resemble a grand castle but no one is quite sure why.

Regency-era excess on the English Coast.

Long-secret natural history museum, featuring the skull of a "Terror Bird."

The whimsical steel spider lurking in the shadows of this suspension bridge shows that engineers can have a sense of humor.

Amidst towering office buildings, a local pub lives inside Sheffield’s oldest surviving domestic building.

This house was home to a succession of park keepers for more than 90 years, but in all that time, it never had a toilet.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.