These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

Hike deep into the woods to explore this Gilded Age masterpiece.

The first evidence of some of the Earth's earliest life was found in this fossilized undersea grotto.

Hidden beneath the waters of Lake Michigan rests a perfectly intact ship from the early 1900s.

This path is named for a mythical half-boar, half-deer creature that once roamed the Green Mountains.

The oldest hydroelectric plant in Czechia is now a museum.

The second largest maple syrup producer in the U.S. runs a high-tech operation.

"A hideous albatross in the Hudson River Valley."

The tragic heiress Barbara Woolworth Hutton built her seventh husband this Japanese-inspired palace in Mexico.

Standing for over 200 years, the abandoned home of a Revolutionary War hero and later a succession of prison superintendents.

Haunted tuberculosis hospital built by the patients.

A folk art mecca famous among outsider art fans.

At this Oaxaca contest, artists turn purple produce into stunning depictions of saints, buildings, and La Pietà.

Japan's largest area of "pink moss" turns the hillside bright pink every spring.

Bug-devouring flora are the stars of a special wing of the glass conservatory.