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 17th-century place of worship still celebrates holidays in the traditional Swedish fashion.

One of the oldest surviving Swedish-American homes in the United States.

Step inside Lucy, the world's largest "elephant."

Chicago was once a major hub of film production, but being silent film you don’t hear much about it.

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

A hollow cement depiction of time's inexorable effect on the human body.

A relic of the Cold War in Chicago.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

The rodent-shaped sidewalk imprint that earned worldwide media attention.

A science teacher's dream.

Cold War missile launch site which has been converted to a public park.

World's second largest particle accelerator, where nature reveals its secrets.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

An LED art installation composed of 600 poles wrapped in kimono fabric.

The quintessential Japanese rock garden has existed for more than 500 years.

Nine Gardens in one—with tea service.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

A 20-meter (65-foot) robot towers over Tokyo Bay.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

This saltwater swimming pool, which is the last of its kind in the United States, is slowly crumbling within sight of multiple high-end beachside hotels.