This saltwater swimming pool, which is the last of its kind in the United States, is slowly crumbling within sight of multiple high-end beachside hotels.

A striking eight-story-high obelisk perched on a coastal California cliff.

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

A towering, steel behemoth that has graced the skyline of Lakeland, Florida since the early 1980s.

A quirky mishmash of Route 66 memorabilia and other throwbacks from the past.

This former factory has deep ties to rubber production in Akron.

This town at the north edge of Myrtle Beach holds a wealth of Black history.

The imprints of astronaut Charles Duke’s moon boots live on at Myrtle Beach’s official South Carolina Hall of Fame.

This historic fort spans more the 300 years.

These dramatic cola-colored falls have appeared in a poem by Henry Wadsworth Longfellow and a song by Sufjan Stevens.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

A church now sits over the site of one of the worst urban disasters of early 19th-century America.

A tribute to a hometown hero and surfing legend.

The walls of the statehouse tell the story of Ohio’s prehistoric past.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

An out-of-the-way wildlife haven with a rich and storied past of harboring thousands of fugitive slaves, or "Maroons" during the mid 1800s.

An eerie diorama that captures the majestic nature of a few prehistoric-looking beasts.

One of the oldest cemeteries in Vermont is the final resting place of soldiers, politicians, and a famous author.

This covered bridge was used by both Union and Confederate troops during the Battle of Gettysburg in 1863.

The charming collection celebrates a small Ohio village's Finnish roots.

When a guy acquired a free church, he hauled it away piece-by-piece to make it the tasting hall at his vineyard.

The world's largest Our Lady of Guadalupe statue overlooks this Ohio sanctuary.

Memorials and tributes scattered across the university grounds remember a famous national tragedy of the Nixon era.

In the Mound Hill Cemetery resides the final resting place of the world's tallest couple.