These banned cigarette vending machines now sell little pieces of pocket-sized art.

This former lieutenant governor's home is brimming with curiosities.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

A kitschy, creepy St. Louis mainstay.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

Less a museum than a bizarre fantasy world created by artists and engineers.

London's old-school healing garden.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

Scattered throughout London are ancient remnants of the city's former bounding wall.

The remains of Crystal Palace Great Exhibition of 1851.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

An incarceration museum on the spot of possibly the oldest prison in England.

Remnants of a Victorian garden feature sitting in public woodland.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A student driver's nightmare.