Memorial to one of the most fatal fires in both circus and U.S. history.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

Historic seaside park featuring explorable, abandoned military structures.

This historic vessel on display in Massachusetts made a dozen scientific expeditions into the Arctic.

The New Bedford Whaling Museum in Massachusetts displays what it calls the world's largest ship model.

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

Built to bless whalers before their voyages, this Massachusetts church now features a ship-shaped pulpit.

The sea urchin sculpture is an unusual commemoration of a New England town's seafaring history.

The final resting place of New England's last "vampire."

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

An ode to one of the dirtiest jobs during the construction of the Boulder Dam.

A professional special effects makeup artist’s collection of horror creatures and one-of-a-kind recreations on display in downtown Boulder City.

The gambling entrepreneur who built a city was also an avid collector of classic cars.

A series of labyrinths in the Nevada desert inspire meditation and calmness.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

The ghost town that ended up on Ebay.

One of the ghostly stops along Route 66.

The set location for a 1987 cult classic draws international film buffs to the middle of the Mojave Desert.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.