The last remaining 19th-century tenement from Boston's old West End neighborhood.

Historic Hull Street was actually the first street with a proper name in the Boston area.

The site of Paul Revere's historic two lantern warning.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

Millions of numbers carved in glass represent the tattoos forced upon victims.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

The Boston square dedicated to the dark poet who was born nearby.

No passport is required to eat around the world at this elegant restaurant.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Lone survivor from Custer's Last Stand forever preserved.

Journey up the capitol building's cupola for an amazing view of Topeka.

Topeka has its own great wall, and it's covered in colorful images from the city's history.

A rainbow-colored house promotes LGBTQ rights across the street from the Westboro Baptist Church.

The Guardian of Tallinn.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

This irregularly shaped sea fortress has defended not one but three different sovereign states.