This private island is still in the family after a 400-year history including a witch hunt and a pirate.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

Nature and beauty amidst pollution and industrial wreckage.

Deliciousness abounds at a Guatemalan restaurant masquerading as a pizzeria.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

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 abandoned factory on the Hudson River once churned out a million bricks a week.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

A massive underwater sinkhole made famous by Jacques Cousteau.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

The 28-foot granite map plots the locations of 40 theaters in New York City.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.