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

The cave where two British judges hid in exile after sentencing the king to death.

Connecticut's shot tower is near the end of its life.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

An abandoned dollhouse factory.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

On the Hudson resides one of the largest clocks in the world.

Fulham F.C. imploded once everyone excised its giant, hated tribute to the King of Pop.

Be on the lookout for the symbolic insect all over the city.

The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.

A tiny, hidden alleyway dedicated to the father of meteorology.

Have a seat with the father of modern computing at this Manchester monument.

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

Museum preserving torture methods from the past.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

A floating cat sanctuary on an Amsterdam canal.

This unattributed sculpture in Amsterdam is hiding in plain sight.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

A peaceful international sculpture garden in upstate New York.

One man's swirling six-acre monument of stone.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

This abandoned factory on the Hudson River once churned out a million bricks a week.