Every equinox this Maya pyramid puts on a spooky ancient light show.

Cool down and fill up after visiting Teotihuacán at this bar and restaurant in a deep, underground cave.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

The only castle in North America to ever house European sovereigns.

The seamy, underground secrets of Portland's criminal past.

Historic funicular railway, believed to be the shortest railroad in the world.

The legendary building that needed ghostly approval before being built.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The unbelievably opulent home built for an infamous newspaperman.

A tourist attraction founded around a slumping cabin.

Shakespeare has been brought to life in this open air theater for the better part of a century.

A public fountain that spouts "health water" from a nearby spring.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

An extravagant monument to an extravagantly unpopular Emperor.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

100-year-old shipwreck you can walk up to at low tide.

A Roman-style column in Oregon hides a spiral staircase inside.

A massive sea stack famous for its appearance in The Goonies.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.