This limestone outcropping was once a ceremonial site for ancient Native Americans.

The first full-scale tunnel built in America is short but scenic.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

This replica of the Greek structure is in the heart of Nashville.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The beautiful baroque library of the Hapsburg empire.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

The first declared National Monument in the United States.

Odd outsider art installations surround a Gold Rush-era ghost town.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Rising from the sea like a stone monster.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Home of an evil witch famous within southern folklore.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.