One woman's Viking Castle on Lake Tahoe.

This abandoned boat was left in place thanks to its rotting beauty.

California's own majestic geyser is powered by a subterranean volcano.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The unbelievably opulent home built for an infamous newspaperman.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Quite simply the largest tree in the world (by volume).

A hotel and restaurant serving as the mecca of kitsch.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Thousands of well-dressed mummies below a monastery.

The world's most active stratovolcano is almost always erupting.

A monument to the real explorer and bear who inspired characters in Philip Pullman's 'His Dark Materials.'

This device was crucial to the Industrial Revolution development of Leeds.

This sculpture of Edward of Woodstock is surrounded by eight Victorian lamp bearers.

One of three sites in England that house the National Collection of Arms and Armour.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

A museum dedicated to the history and exploration of both popular music and science fiction.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

An ancient Egyptian temple in the middle of Madrid, Spain.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Elevated freight railway turned wildly successful urban park.

This shop specializes in oddities and Victorian-inspired wonders.