The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

World's first "penitentiary," meant to be humane, drove men insane.

Dr Barnes' $25 billion private collection of art and arboretum.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Century-old shop, specializing in Occult products.

A layered tribute to the work of mosaicist Isaiah Zagar.

In the early 1800s, surgery was also a show.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

This German bone house contains the remains of some 20,000 souls.

The zoological collection at the Hessisches Landesmuseum hosts some of the world's oldest habitat dioramas.

This charming stone church on the shore of Lake Tekapo is an icon in astrophotography.

The oldest philatelic museum in the United States.

A massive rotating globe sits at the center of Babson Park.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

A journey through every aspect of the human body.

This collection of French root art looks like an indoor fairy wonderland.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.

This demonic monument commemorates a carving destroyed in World War II.

A rare chance to ride one of the few continuous elevators still in operation.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

This baroque palace displays an impressive collection of taxidermy, art, and rare objects from the days of courtly hunting.

This 16th-century church now has a heavenly second life as a cultural hub of Pátzcuaro.

This church, buried halfway in lava rock, is all that remains of a Mexican village destroyed by a volcano.