It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

A multimedia experience that chronicles the atrocities of racism.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

This California tree is the single source of the state's entire orange industry.

This monument built by Japanese American immigrants spent decades underground.

Now a pedestrian bridge, this was once part of a narrow-gauge railroad that ran along the east coast of Kauai.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

A local pineapple cannery once dumped pineapple trimmings off of this pier, with sometimes smelly results.

This gnarled old tree supposedly sprouted from seeds kept in the pocket of a 16th-century Spanish sailor.

This Neolithic stone circle is the most complete of its kind in Scotland.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The site of the world's first modern seismometer.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

One man's ambition created this psychedelic log home.

A 32-acre fun park dedicated to all things cheese.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

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

A modest reminder of treacherous waters at the Golden Gate.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.