The last remnants of a massive medieval wall that once encompassed the city of Berlin.

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

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

A restaurant and observation deck built in a unique broadcasting antenna.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This fully restored synagogue explores the American Jewish experience along the old frontier.

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

This iconic science fiction house still looks like something from the future.

A downtown park built on top of unclaimed graves.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Some islands... they come, they go, especially on Lake Travis.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

Three hundred years of preserved Spanish colonial history in San Antonio.

This downtown Dallas art installation is always on the lookout.

Granting the right of way to ships over surface traffic since 1917.

A colorful statue honoring the local salmon in glass and bronze.

The longest and widest floating bridge in the world.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

A (slightly) grownup take on the classic retro arcade.

The first park built over a freeway is a brutalist masterwork.