A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

This giant temperature attraction created some giant electric bills.

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

A popular tourist cave with a dark past.

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

Four hundred granite steps were built into this massive rock by the National Park Service.

It would be a crime to miss it.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

North America's largest accredited model railroad museum.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

An inconspicuous footbridge beloved by San Diego locals.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

San Diego's most historic and haunted home.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

An enormous and lavish Gothic church in Czechia.

Europe's second largest ossuary wasn't discovered until 2001.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Go inside to really appreciate this 500-year-old technological masterpiece.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

A church of bones, decorated with 40,000 human skeletons.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.