Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

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

A quiet memorial to those who died saving others in the heart of the City of London.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

There aren't too many operational funiculars around, but Pittsburgh has two!

This historic museum is home to a rare Confederate Chester Gun.

This grand gothic brewery has been pumping out suds for over a hundred years.

This small museum is kept in a house that was integral to the genesis of Uncle Tom's Cabin.

From failed port town to Civil War fort, the ruins of this former defense saw their finest day in the television age.

The cruel trial of a 13-year-old boy inspired the creation of this now abandoned reformatory.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

This skewed English house has looked like it's going to fall over for centuries.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

The house where John Wilkes Booth conspired with his co-conspirators.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

Northern Ireland's Brobdingnagian stepping stones.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

One of Ireland's most infamous prisons for rebels including men, women and children.