Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

A big museum full of little worlds.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

Three markers installed over the course of 140 years mark the point where Arkansas, Missouri, and Oklahoma converge.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

This historic general store still operates much as it did in the late 1800s.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

Where animatronic singing fish go to retire.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

You can spend the night in Dr. Frank-N-Furter's castle.

A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.

This recently restored timepiece has stood all around Kansas City.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

An abandoned concrete jungle surrounded by a lush park.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Pizza with a side of fine art.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

This giant temperature attraction created some giant electric bills.

The most isolated mailbox in America lets desert travelers record their passing.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.