An abandoned shipping control tower looks like a satellite perched at the end of a pier.

This massive home was constructed by one of the greatest conservationists in Colorado history.

A secluded fortress from the days of the Crusades that offers breathtaking views.

The oldest house in the capital of Silicon Valley.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

A small Wyoming town is home to the state's oldest-operating soda fountain.

This stone honors the U.S. Rangers who made Carrickfergus their home base during World War II.

This heavily worn bas-relief was once an honored fertility symbol.

These sculptures honor the knights who once called Carrickfergus Castle their stronghold.

A historic fortification critical to Anglo-Scottish conflicts now serves as a bed and breakfast.

The largest cemetery for enslaved people in Loudoun County was almost lost to history, if not for the research of a minister.

This beautiful Cape Cod beach offers dazzling views and an interesting historical footnote.

A normal, unassuming pedestrian overpass has been the demise of many, many trucks.

High on a hill, an obelisk stands as tribute to local soldiers from several wars.

This 252 step staircase offers stunning views of San Jose.

This former Union fort commands a fine view of downtown Cape Girardeau and the Mississippi River.

The final resting place of one of the most important figures in the world of tea.

A restored World War II Churchill Mark VII Tank now stands guard in Carrickfergus.

Abandoned in 2009, this once popular resort destination now stands frozen in time.

One of the last socialist halls still standing in the United States.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

An eerie reminder to the horrors of World War II.

An ancient stone with mysterious origins stands in a residential neighborhood.

Remnants of the Roman empire's northern frontier nestled in suburban Glasgow.