Largest institutional collection of tomb figures from Western Mexico in the United States.

A collection of birdhouses await curious motorists and avian squatters.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

A restored historic movie theater is the perfect place for a regional film archive.

The whole of Maine's history with the salty little fish is packed into this tiny coastal museum.

Its unique collection details the history of the state's svelte railroads.

The world's only and thus largest collection of its kind celebrates everyday wonder through simple umbrella sheaths.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Scene of the grisly murder of two Norwegian women in 1873.

The second-oldest garden cemetery in the U.S. was also a college brainstorm spot of Stephen King.

A strange mark in the stone fence of a cemetery fabled to have been made by the Devil himself.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

The mysterious canine hides atop a drain pipe on the back of the building, some say as a sneaky shoutout to Yale.

This huge work of functional public art replaced a landfill in New Jersey's Meadowlands.

Huge masonic hall in Philadelphia with lavishly themed rooms.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.