Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

Connecticut's shot tower is near the end of its life.

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.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

A sculptural commentary on capitalism pokes up from the East River.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The "Seinfeld" diner.

Hiroshima survivor on Riverside Drive.

Peek through the gates at this oasis from the city, full of Old English charm.

Salute the leader of the proletariat.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

Red frames showcase remnants of one of New York's original subway stations.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

The world's largest public collection of PEZ memorabilia.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.