Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A painfully obvious spy house sits right across the street from the Russian Embassy.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

The site of the climactic scene from the classic horror film is now a historic landmark.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

Victorian-era Egyptomania left its mark on this Nashville landmark.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

A restored, one-room African-American schoolhouse in the diva's hometown now preserves the legacy of its most famous student.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

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

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

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

An autonomous oak in Alabama.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

A miniature city built by a single hunchbacked monk.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

Every last book in this bookstore is signed by the author.

Pink, packed sanctuary and home of the world's fullest-time Elvis fanatic.

One of the few existing, fully functional Showbiz Pizza animatronic shows.

The simple gravesite of a Romany clan leader is dotted with offerings, including cans of her favorite drink, Crush orange soda.

These former theme park figures have a new lease on life outside a water plant-turned-restaurant.