The monument dedicated to Phineas Gage in the town where his accident happened.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

The former home of the hard partying literary power couple is now one of the only museums devoted to their story.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

The massive machine creates cracking displays of indoor lightning.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

Home to a vast and influential collection of Shakespeareana.

Go take a picture with the inventor of the daguerreotype photographic process.

Where the U.S. government kept its actual treasure, before Fort Knox.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

There’s a hidden military meme engraved on the World War II Memorial.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

The walls of the iconic dome are hollow and have a secret stairway.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A nostalgic bibliographic gem.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The United States Capitol's former columns still stand.