A serene but haunting memorial to protective wetland lost, the absence of which directly damaged the Lower 9th Ward following Hurricane Katrina.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

An architectural experiment in the Lower Ninth Ward, this row house is capable of floating as high as the Katrina floodwaters.

This unusual three-way wooden foot bridge spans two rivers at once.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.

Colorful, cheeky signs spill out of legendary New Orleans folk artist Dr. Bob's Bywater studio warning you to "Be Nice—Or Leave."

This city block-long devotional site, a replica of a famous site in France, is dedicated to the patron saint of grandmothers, mothers, and educators.

After the oysters have been shucked, and the restaurant's been shuttered, the terrazzo sidewalk from the 1940s is all that remains.

This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

The tallest bridge in California was constructed for a project that was eventually cancelled.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

Over a century old, this restored Victorian building is surrounded by a lush garden filled with rare palms.

This theatre and its amazing marquee harken back to the Golden Age of Hollywood.

This museum explores the history of the book, from scrolls to mass-produced objects through tools, stories, and massive cast-iron binding machinery (some of it operational).

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

A long-forgotten Victorian swimming hole is still a fun spot for a dip.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

A strange sandstone formation in the middle of nowhere presents an interesting climbing opportunity.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

This lookout tower built in the 1930s is now an in-demand cabin with what might be the best view of the Seneca State Forest.

A lighthouse on this West Virginia lake started as a joke, then the forces of nature helped make it a reality.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.