World's largest collection of serial killer artwork and other macabre exhibits.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

In this century-old literary safehouse, print is alive and well.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.

The single richest source of elemental discoveries in the world.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

This large collection of tiny things revels in the art of fine machinery well made.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

An original apothecary from 1792.

The United States Capitol's former columns still stand.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Largest Roman Catholic church in North America.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

At 207 feet, one of the world's longest continuous escalators.

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

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

Home to items never before seen by the public.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

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

This grand gothic brewery has been pumping out suds for over a hundred years.

A couple turned their front yard into an artistic masterpiece.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.