This monument pays tribute to the city’s contribution to basketball history.

Elevated freight railway turned wildly successful urban park.

A miniature train theme park, free to the public, laying at the base of the Santa Monica Mountains.

A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

This large stone off the coast of Martinique had a brief career in the Royal Navy.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Canada's subterranean Cold War museum has doubled as a movie set.

The farm where one of America's most famous folk artists created her paintings.

The Vermont square that inspired Shirley Jackson's "The Lottery."

The building that inspired Shirley Jackson's "The Haunting of Hill House."

More than 200 unconventional musical instruments that anyone can play.

Resonating tubes make music from highway overpass.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.

This half-ton piece of the Alps sits at the base of the CN Tower.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The giant birds honor two native North American species.

The private island of Yale's elite Skull & Bones society is kind of a dump.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

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