This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

This icon of the Atomic Age now lays dormant.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

This public space is speckled with the eerie remnants of a defunct amusement park.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

Mysterious rocks that ring musically when struck.

Thousands of tiny squares in different colors make up this piece of street art.

A giant time capsule not scheduled to be cored until 2040.

America's post-nuclear-attack chambers of Congress.

In a pedestrian tunnel on North Carolina State’s campus resides an expressive and artistic free-for-all.

This historic sunny-yellow building has an unfortunate connection to the sinking of the Titanic.

A sign marks the plane crash that caused two nuclear bombs to fall in North Carolina.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

The Cadillac Ranch for monster truck aficionados.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

The Master of Magnetism dominates the walls of a scrap metal yard to keep graffiti artists at bay.

This public park was the site of the largest civilian disaster of the Civil War.

A small granite block at this monument's base is the only part of Lincoln's Tomb outside of Illinois.

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.