Things roll uphill on this Mexican street that seems to defy gravity.

The first home of the doomed aviatrix Amelia Earhart.

An exhibit of items from the mental institution where Mary Todd Lincoln lived after her son conspired to have her committed.

A Museum of Psychiatry in a still-operating mental institution.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

Mysterious glowing orbs float through the desert night.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Over 200 people were buried here with only a small stone to mark their final resting place.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

A formerly abandoned mental institute, now back in business.

This private home is famous for appearing in the cult-classic "Twin Peaks" series.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

This hulking behemoth is actually five interconnected towers built in the 1960s.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Abandoned outpost once home to a murderous tyrant.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.