Two islands just 4 km apart separated by an International Border and Date Line.

In 1912, this idyllic Alaska landscape was blown apart in the largest volcanic eruption of the 20th century.

See a full-scale whale skeleton and experience the captivating culture of Alaska’s Native people at this heritage center in east Anchorage.

How did a 154-foot-long piece of spacecraft wind up abandoned along the side of a Florida road?

During World War II, over 13,000 people of Japanese ancestry were forcibly removed from their homes and incarcerated in this camp in the Idaho desert.

Snapshots of late 19th and early 20th century Americana, focused on life on the plains, are displayed in this museum.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

Evanston's historic railroad complex saved this rail town from reaching the "end of the line."

This mysterious marker puzzles pedestrians and infuriates geographers.

“Invented in Key West, Perfected in Brooklyn."

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Little Red Lighthouse under the George Washington Bridge.

Read a book next to a Midtown waterfall.

One of only two commuter aerial tramways in the United States.

New York City's smallest piece of private property.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The highest point on the island known for buildings that touch the sky.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

Amid skyscrapers and traffic exists this unique aquatic ecosystem.

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