Hiroshima survivor on Riverside Drive.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

The "Seinfeld" diner.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

The studio of influential composer Charles Ives is perfectly reconstructed, hidden in the back of the American Academy of Arts and Letters.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

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

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

Mysterious rocks that ring musically when struck.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

An outlandish shoe shaped house built by an eccentric millionaire.

This stately 19th century library pushed architectural boundaries at a time when the public library movement was just taking off.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

Overshadowed by quilts, the artistry of these patterned textiles went underappreciated for too long.

Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."