Mysterious 500-year-old tapestries depict a unicorn hunt.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

Nature and beauty amidst pollution and industrial wreckage.

Once a dumping spot, now a park with a kayak launch.

A group dedicated to promoting boating, kayaking and environmental education programs.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

The world's second largest single-dish radio telescope, once used to contact E.T.

The world's brightest bioluminescent bay.

A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

The center of the only hemisphere that awards visitors with a commemorative coin.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

Elevated freight railway turned wildly successful urban park.