Reminders of the Battle of Berlin still scar the railway.

Cold war icon and onetime "hole" in the iron curtain.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

Floating swimming pool within a moored vessel.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The last location where Buddy Holly, Ritchie Valens, and J. P. "The Big Bopper" Richardson played before their tragic deaths.

What was once a communal kitchen now serves heaping portions of hearty German fare.

The only thing these street signs will help you navigate is your imagination.

Exhibits from an island in Lake Michigan are preserved in this hand-built cabin museum.

The Bong-area park police have asked visitors to please, stop stealing the signs.

This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.

This collection is the largest in the world dedicated to Sherlock Holmes and Sir Arthur Conan Doyle.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

The last remaining attraction from Paragon Park.

This small shop walked so America could run on Dunkin'.

One of the indelible moments of the American Revolution took place at this location.

Dedicated to a colonial woman who was hanged for being a Quaker.

A luxury hotel constructed out of a former jail.

This impressive Boston holy house is the American mecca for Christian scientists.

Dedicated to one of the darkest moments in Irish history.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.