The oldest public library in Ireland.

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

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

All that's left of the quintessential "cabin in the woods."

One person's lost luggage is another person's treasure.

Towering basalt columns, a creation of fire and ice.

The rocks in this arid basin leave trails of movement behind them.

Take a drunken tour inside the world's largest known geode.

A self-built castle made by a mysterious man.

Olfactory delights in San Francisco's Botanical Gardens.

A trash dump made beautiful by nature's power.

Eighteen miniature death-scene dioramas.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Shop selling 500 flavors of soda has something for everyone.

Enormous lake at the bottom of a unique cave system.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

A bizarre house filled with an astounding array of collections.

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

On the Oregon coast there is a natural hole that seems to be draining the sea.

One of Jeff Koons’s largest sculptures and his first commemorative work.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

How did a French journalist’s grave become the sexiest statue in the cemetery?