This environmental engineering marvel keeps salt water from the Elizabeth River.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Metal dinosaurs lurk in a sculpture garden on the outskirts of a popular resort town.

A curious building honoring past and current members of a historic musical comedy troupe.

One of Philadelphia's largest murals resides hidden under this bridge.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

Step into a pastel time capsule where candy is truly dandy.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

Yo, Adrian!

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

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

These old doors are covered in the signatures of Rehoboth Beach artists dating back to the 1930s.

The Ryerss mansion in Burholme Park now houses a community library and a museum filled with a trove of oddities from around the world.

This beloved marketplace mascot poops money and grants good luck.

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

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

The first American department store, and home to the largest operating musical instrument in the world.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.