This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

An improbable waterfall springs from an orange-white cliff face, tumbling into the headwaters of the Virgin River above Zion National Park.

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Resonating tubes make music from highway overpass.

A cave dug by a man directed by ghosts to find pirate treasure.

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

Three prestigious academic collections come together to create a world-class natural history museum.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

A quaint museum nestled in a former hub of Irish moss harvesting.

These three lighthouses played a fundamental role in the maritime life of Eastham.

The last remaining attraction from Paragon Park.

Martha's Vineyard's most beloved speakeasy sells late-night pastries.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

Found: Garden of Eden in Miami-Dade County, Florida.

Tucked away in the forests of North Florida resides a 19th-century lighthouse.

This small island was the first National Wildlife Refuge ever created in the United States.

Visitors to this shop will find fossils, minerals, meteorites, skeletons, oddities, and much more.

Though it may look like it’s missing its outer shell, this skeletal cast-iron tower was built to withstand wind and waves.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.