Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.

The overgrown ruins of a once thriving World War I-era copper mine.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A huge musical instrument played by the ocean.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

This now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.

A forensic lab dedicated to fighting crimes against wildlife.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

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

This taxidermy scene brings the struggle for survival in the Indian jungle to a quiet corner of a Manhattan museum.

This impressive scene portrays the elusive forest giraffe of Central Africa.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

One of the city’s oldest watering holes was originally the home of a famous James Brown (not that one).

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

This Central New York ghost town was once a prosperous railroad community.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

A winding, cliffside stretch of road overlooking the Delaware River.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.