These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A bronze sculpture in the heart of Portland represents Maine’s most defining industry.

Abandoned Italianate architecture on the coast of Maine.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

An Irish Memorial commemorating those who perished due to potato blight.

Alexander Hamilton’s creation caused quite a bit of controversy.

An abandoned church gets a second life as a massive beer hall and event space.

This one-room cabin where the young colonel slept during the French and Indian War.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

The largest earthwork effigy in the world.

The colonial home of Paul Revere during the American Revolution.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

Elevated freight railway turned wildly successful urban park.

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

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

With a history dating back to Victorian times, this architectural gem is a rare New York tourist haunt worth visiting.

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

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

You must take the A train... to the last active cemetery in Manhattan.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.