A beautiful old horse stable hosts one of the largest collections of domestic animal skeletons and taxidermy.

No need to strap in for a "ride" on this walkable roller coaster.

A restaurant and observation deck built in a unique broadcasting antenna.

A Jewish deli run by Yemeni Muslims in an Afro-Caribbean neighborhood is quintessential Brooklyn.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Volunteer-run library dedicated to exploring five decades of activism history.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

A modern mechanical planetary system, part of a 10,000 year clock.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

This Great Depression-era creation was once known as the strangest house in the world.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

A world-class collection of mechanical musical instruments and automata.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

Whimsical artist house in the New Jersey woods.

This roadside stop between Goblin Valley is the perfect location to view some of the region's natural wonders.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

In this century-old literary safehouse, print is alive and well.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.