A hands-off space for graffiti artists to hone and display their skills.

Banksy gives themself artistic license with this piece of London street art.

The television series' iconic giant foot was borrowed from this classical painting.

Eighty million natural history specimens call this gargantuan museum home.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Exotic, erotic, and esoteric, one artist's live-in Bali gallery brings a splash of color and madness to its surroundings.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

A Balinese resort, empty and trapped in time.

The wing of this deserted Boeing 737 almost touches the Dunkin' Donuts next door.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

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

The world's only museum devoted to the wonders of fluorescence.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

The last of Amsterdam's original sea level markers remaining in place.

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

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A preserved block of timber buildings from the city's industrial era in the Middle Ages.

This ruin in a suburban park may be the place where Shakespeare's "A Midsummer Night's Dream" was first performed.

A 13th-century inn where the ill-fated King Charles I spent his last night of freedom.

An enigmatic natural rock formation with a manmade passage cut through the center.

The ancestral home of beloved English poet Lord Byron has a bizarre history.