Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

One of the last remaining movie theatres in the country that features a rear-projection system.

With statues of Nelson Mandela and Harvey Milk this monument has been called the Mount Rushmore of California.

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

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

The world-record holder for the longest bridge stretching continuously over water.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

An iconic location along the Los Angeles River where countless movie scenes are filmed.

These two monoliths have stood at the entrance to the neighborhood since the days it was called "Hollywoodland."

The blinking light atop the iconic landmark has been sending secret messages for decades.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Inside this museum, the history of the Walt Disney Family empire is on full display.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A huge musical instrument played by the ocean.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Race through the maze, get your name on the sign.

San Francisco’s century-old Christmas Tree.