This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

The walls of the iconic dome are hollow and have a secret stairway.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

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

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A nourishing complex of found object art, paintings, and sculptures that celebrate key figures in Black history.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

A treasure trove of rare and exquisitely detailed antiques

From pre-war whiskey cocktails to prohibition-era speakeasy secrecy, this bar has seen it all.

A common entry point to the Griffith Observatory trail holds its own wonders.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

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

America's most famous piece of self-built architecture.

This unusual elevator doesn’t stop or slow down.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.