A 19th-century cabin built into a hollowed-out Sequoia tree.

Quite simply the largest tree in the world (by volume).

A homage to the King at the hotel where he revived his career.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A collection of haunted objects and macabre oddities under one roof.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

The best Tiki bar in Las Vegas.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A lush green oasis in the middle of Chicago.

One of the last free public hot springs is decorated with hippie art.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The Zalud family experienced a number of tragedies in one decade, giving rise to rumors that the 19th century house is haunted.

An antique store houses the last operational diner from the defunct department store chain.

Commonly referred to as the most photographed Victorian home in the United States.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

An optical illusion found amid a logged redwood forest.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

Canyon walls shrouded in ferns.

The southernmost outpost of the Russian Empire in colonial America.

This “living museum” at UCLA exhibits thousands of plant species from all over the world.

These two monoliths have stood at the entrance to the neighborhood since the days it was called "Hollywoodland."

The blinking light atop the iconic landmark has been sending secret messages for decades.