Explore the great outdoors in this popular eastern Pennsylvania park.

This state park in Schuylkill County, is popular for fishing, hiking, and a paved loop around a stunning 52-acre lake.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.

Since the 1930s, this Pennsylvania town has celebrated the humble tomato.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

It's a unique monument honoring a great character who inspired a generation of young women to be more and pursue their dreams.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

Paranormal activity on the great lakes.

A copy of the famous bus used during the filming of 'Into the Wild' is on display at an Alaska brewery.

Four-story concrete hotel never opened to customers.

Considered by many to be one of the most dangerous highways in Alaska.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

The now-serene site of the largest earthquake ever recorded in North America.

A quirky roadside sign was the subject of a years-long legal standoff over highway right-of-way clearances. 

Clean, cold drinking water flows from a nondescript pipe in a roadside rock face.

Permanent exhibit reminds visitors of the Exxon Valdez.

The king of U.S. high points towers over every other peak on the continent.

One of Oahu’s best snorkeling and diving spots was created by warm water discharged from the nearby power plant.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

A controversial memorial at the place where Captain Cook met his violent end.

These ancient sacred grounds granted amnesty to those who managed to reach them.

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

A battleship’s mast sits atop a turret-like memorial, commemorating those who lost their lives in one of the precipitating events of the Spanish-American War.

The site of one of the deadliest skirmishes during the Battle of Fredricksburg.