The Boston square dedicated to the dark poet who was born nearby.

This underground oasis is one of North America’s most fascinating prehistoric places—and you can scuba dive in it.

The highway's southernmost spot is a beloved local attraction.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

At this bayside marina, enormous wild tarpon jump out of the water to snatch fish from visitors’ hands.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

These pretty kitties killed and ate as many as 135 railway workers.

Enjoy the cutest cafe experience outdoors.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

A surreal, interdimensional shopping center and portal to another universe by Meow Wolf.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Elevated freight railway turned wildly successful urban park.

A dilapidated dock tells the story of Titanic’s missed arrival.

The "Seinfeld" diner.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.