Largest Roman Catholic church in North America.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This free, take-a-book shop seems like a trick but isn't.

Meet some of the most prominent figures in Black history through life-sized wax models.

The collection of intricate sculptures includes one carved from a mammoth's tusk

66,000 pieces of art, donated by one of the world's richest men.

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

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

This jail which was in service for over a century is now open for curious visitors.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

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

A park full of outsider art, created by college students studying outsider art.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Featuring the the longest lift span of any vertical-lift bridge in the world.

Once forgotten, this strip of sand was a rare beachside haven for Black Americans in Atlantic City.

The first partially complete dinosaur skeleton was discovered here, forever changing the world's view of the ruling reptiles.

This old-fashioned candy shop, ice cream parlor, and diner served as the setting for one of TV's most controversial series finales.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.