Why have you never heard of the second most popular tourist site in New York?

Dr. Henry Cogswell hoped that his elaborate drinking fountains would dissuade people from drinking alcohol.

At this farm in upstate New York, the former president plotted his reelection campaign.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

Dedicated to the explorer who opened Japan to the West.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

The only subway station in the city that still makes use of gap fillers.

This historic cemetery stopped accepting bodies before many Canadian cities were founded.

A journey through a curious collection of oddities and wonder.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Journey inside the bowels of this sperm whale sculpture.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

A monument to the love people have for their pets.

The restored and active Victorian-era final resting place of San Francisco.

This private residence was the template for one of the most beloved television homes of all time.

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

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A huge musical instrument played by the ocean.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

One of the earliest graveyards in the region.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The 28-foot granite map plots the locations of 40 theaters in New York City.