Largest Roman Catholic church in North America.

The largest outdoor art gallery in the Northwest United States.

Jail from the 19th century that was built by inmates.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

A small Richmond island dotted with the remnants of hundreds of years of history.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

The land is home to swimming ponies and a legendary 18th-century treasure.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This former asylum for Black Americans is haunted by its history of violence and racism.

Famously misunderstood wonder of the ancient world

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The most loyal of little dogs, or a Victorian era publicity stunt?

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

An astounding collection of medical specimens, including bits of President Lincoln.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

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

A floating cat sanctuary on an Amsterdam canal.

Banksy gives themself artistic license with this piece of London street art.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

A little sculpture with a large wardrobe.