An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

This beach-side arcade is believed to be the oldest penny arcade in America.

An ancient cemetery with some historic bodies underfoot.

The final resting place of New England's last "vampire."

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

These whimsical works of art tell the story of the city's past and present.

An industrial waste tourist attraction.

These unique rock formations were created during the Ice Age.

This stately 19th century library pushed architectural boundaries at a time when the public library movement was just taking off.

When in Idaho, sleep in a giant potato.

This museum glorifies the humble potato.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

The world's only museum devoted to the wonders of fluorescence.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This unattributed sculpture in Amsterdam is hiding in plain sight.

Cat art as far as the eye can see.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

A riverside tiny house with books and other treasures galore.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Above an abandoned Underground station, this charming bookstore is home to strange antiquities and literary works.

This knockout museum lies in a sleepy corner of London.