Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The oldest hotel in Nevada.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A modernist landscape of water and sci-fi concrete.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

An Alabama courtroom where two famous American authors played as children became the setting for a Pulitzer Prize-winning novel.

This coastal port saw one of the most significant battles of the Civil War.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

This small glass cube is a peaceful out-of-the-way sanctuary at the busy airport.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This figure was carved in the likeness of a voyeur, so that every time he spied across the street, he would find only himself staring back.

A time capsule of life in Southern Florida in the 1930s.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

A well-preserved example of an early industrial operation in the northeastern United States.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

Historic Lee family homestead built in 1785, later serving as a private home and a Civil War hospital.

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.