A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

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

San Diego's most historic and haunted home.

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

The crumbling remains of a 19th century fortess.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The longest navigable underground river in the United States is home to countless blind and albino animals.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

The eccentric mansion of one the most popular horror authors of modern times.

An eccentric inventor's castle home with its own indoor weather system.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The beauty of urban decay, hiding some dark secrets.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

European castle ruins in an American state park are actually the product of death and grief.

A castle built by an eccentric medieval enthusiast in rural Ohio.