Ruins of a once-opulent grand Victorian resort.

A tiny waterway named after a ghost story.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

A collection of massive stacked rocks in Texas includes a snarky note on the benefits of modern technology.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

No one is sure why this mysterious tradition started.

This unique tower has been home to malaria-fighting bats for 100 years.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

A mysterious drive-in nestled in the forest that leaves little to the imagination.

This ancient settlement contains some of the largest earthen mounds in North America.

This roadside attraction in the woods of Mississippi is a scalable replica of the Holy Lands during biblical times.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

Installed as a beacon of hope for a hurricane-racked island, the statue had to be moved multiple times due to the eroding coast.

This secluded ruin was once a home for exotic plants.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A marvel of Byzantine engineering under the streets of Istanbul.

The untimely death of a dignitary's daughter led to this fort being abandoned before it was ever finished.

Come for the waffles, stay for more waffles.