One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

These abandoned grain silos and tunnels are an urban exploration dream.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

One of the finest examples of a black soil prairie that was barely saved by the Great Depression.

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

This museum remembers an apocalyptic cult that became more famous for baseball than religious radicalism.