This classic restaurant features a gorgeous mirror-clad room.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

The most visited, and possibly most controversial, museum in Germany.

This haunting stone chasm is a hotbed of mossy rock and English legend.

This crumbling folly looks like an enchanted left over from Middle Earth.

A small but immensely extravagant palace built by the "Night King."

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

"A hideous albatross in the Hudson River Valley."

An eccentric playboy's astounding natural history collection.

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

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

Cat art as far as the eye can see.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

A rare view of a preserved Victorian science museum.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The final resting place for the remains of 143 Habsburg royalty.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.