This memorial honors those who served on Gallops Island Radio Training Station during the second World War.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

This unassuming Massachusetts residence was built with a trap door to hide escapees on the Underground Railroad.

An 80-year-old house built out of newspapers.

This home is steeped in history from, George Washington to George Corwin, High Sheriff during the Salem Witch Trials.

The ruins of a medieval monastery named after a type of tree.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

The taxidermied remains of a once-great parrot.

Public access to clean drinking water was an instant hit among the masses.

Rebuilt remains of a temple to Roman god Mithras.

A tongue-in-cheek arcade where the games are based on everyday life.

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

Final resting place of a New Haven urban legend.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

The world's largest public collection of PEZ memorabilia.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

A vast collection of rare books, manuscripts & extraordinary objects illustrating the history of medicine.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

A public urinal so pretty, it was declared a national monument.

A beautifully eclectic mix of architectural styles.

The history and future of cannabis.

One of Amsterdam's narrowest houses is located right across the canal from its widest.