In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

One of the world's largest collections of pathological specimens.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

The Origin of On the Origin of Species.

A Neolithic burial site built 1,000 years before Stonehenge.

An English explorer's vast natural history collection has the first realistic dioramas of animals staged in their natural habitats.

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

An architect transformed this abandoned cement factory into his castle-like workshop.

Shop selling 500 flavors of soda has something for everyone.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

A castle that was built stone by stone by an eccentric journalist.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

A 9 year-old boy’s elaborate cardboard arcade in his father’s used auto parts store.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."