A crumbling hospital from the 1850s on Roosevelt Island.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Before he was the "Big Train," baseball's greatest pitcher was the original "Humboldt Thunderbolt."

The world's largest collection of Don Quixote-inspired art.

Dr. Henry Cogswell hoped that his elaborate drinking fountains would dissuade people from drinking alcohol.

This rural roadside cross marks the farthest point of Coronado's expedition, and the place where the Catholic faith first came to America.

These craggy limestone outcrops offer a glimpse at a unique piece of Florida geology.

The local community brought back this land to transform it into a nature preserve.

A tribute to two brothers' artistic endeavors.

The world's largest sundial can cast a shadow more than 1,600 feet long.

A Buddhist retreat built on more than 100 acres of California Redwood forest.

Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

A steeple that now houses a small church.

This century-old independent movie theater with an iconic Art Deco neon sign survived a devastating fire in 2016.

An archway adorned with vulnerable flora and fauna.

An imposing mausoleum that houses the remains of the former Argentinian president.

A bench and a bridge pay tribute to Birmingham's favorite heavy metal band.

A small stone monument marks the spot on Stavely Road where the first of hundreds of missiles touched down during World War II.

Used as a military post in three different engagements, this fort has remained incomplete and unfired upon for nearly 200 years.

Built by an accountant with a dream of running a grand resort, this estate has sat vacant for over half a century.

Crystal clear, drinkable mountain spring water by the side of the road.

This family-owned restaurant celebrates Native American cuisine.

It is one of the few places in Rochester that has both Union and Confederate soldiers buried and honored.

The world's most comprehensive collection of Willard timepieces is a celebration of early American clockmaking.