Places holliebaranick Wants to Go

This abandoned amusement park was built on a site with a dark history.

The secret city built by the Manhattan Project.

These eerie outliers of the lightning bug family glow a mysterious blue color.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

A grove of "candelabra redwoods" deep in California's Lost Coast.

Curious cave that stays a cool 56 degrees all year long.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

The North American Cryptid Museum doesn't simply tell stories about monsters—it invites you to step into their world.

Rare recess caves fill this unbelievably beautiful Ohio park.

One of Indiana's only natural sandstone arches is nestled between resort ruins and an old Boy Scouts camp.

A wonderland of caves in eastern Iowa.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

When you can't get to the Pacific, just go to Florida.

This onetime gambler’s den was turned into a destination restaurant, reachable only by boat.

Dozens of giant mermaids are hidden across Florida’s coast in parks, yards, and beaches.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A painfully obvious spy house sits right across the street from the Russian Embassy.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

A pub that claims a lineage as one of England's oldest inns, back to 947 AD

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Famously misunderstood wonder of the ancient world