These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A watercolor recreation of a famous fresco unearthed at Pompeii.

Egyptian Revival obelisks still rise over the old mine shafts.

As its grandiose name implies, this wooden dome is unsurpassed in size.

A comedy troupe's collection of bizarre humor.

Large one-man sculpture park in Michigan.

This enchanting forest trail leads to ethereal abodes and a giant bird's nest.

Two dozen rescued bears roam (mostly) free at the largest bear ranch in the U.S.

Astounding collection of coin-operated games and automata.

This freshwater spring fills with 10,000 gallons of water per minute.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This legendary urban waterfall creates a dazzling display of rainbows.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

Watch the newest land on the planet form before your eyes.

A tunnel of hardened lava along Maui’s famous Road to Hana.

This black shoreline is made up of exploded lava particles.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

This vintage animatronics show is the Vegas version of a walk through the woods.

A collection of haunted objects and macabre oddities under one roof.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.