Check out a hidden collection of vintage neon signs.

An archive of ceramic eggs painted to record clowns' personal makeup designs.

The taxidermied remains of a once-great parrot.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

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

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

A very tiny church, bisected by a now-dead oak tree and marooned in the middle of a shopping center parking lot.

With more than 2,000 pieces, this is world's largest collection of artwork inspired by Leonardo da Vinci's 'The Last Supper.'

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

How did a lighthouse wind up in the middle of this landlocked German city?

Dine on ceviche tacos in the sea at this floating restaurant only accessible by boat.

A recreation of a sign that Charles Dickens used to see on his walk home.

Shop for superb tortillas at this homage to the ancient art of nixtamalization.

A cave's rare beauty held a cavernous secret hidden underground.

This remote camping site offers incredible stargazing opportunities.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

In 1952, this restaurant began selling the Colonel's “secret” recipe.

Someone really, really wanted to save this fast-food icon from demolition.

The Tudor-style cottage in the middle of the square is not quite what it seems.