This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

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

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Interactive modern and vintage submarine equipment, World War II relics, and submarine attire.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

A vision of beautiful Hindu architecture in the middle of the American South.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

Tour the sci-fi-esque reality of governmental disease management.

Town of spiritualists and mediums in Florida.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The world's largest private aircraft collection.

When this test site was abandoned, they didn't even bother to take the rocket with them.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

An abandoned water sports stadium that has become a haven for graffiti and decay.

This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

The so-called "world's shortest river" is actually a window into a cave.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.