A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

A cemetery with goat-horn bedecked gravestones.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

A wacky, UFO-shaped house in a suburban neighborhood.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

The oldest surviving botanic garden in the United States.

This elaborate towering structure was once famed for its revolutionary height.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

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.

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

Where America's first doomsday cult awaited the end of the world.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A rare view of a preserved Victorian science museum.

A layered tribute to the work of mosaicist Isaiah Zagar.