Beneath its placid surface, one of New York City's primary sources of drinking water hides a haunted past.

The colonial home of Paul Revere during the American Revolution.

Right here, members of the Lewis and Clark expedition boiled ocean water to make salt.

Curated collection of classic cars restored to immaculate condition.

A mass of iron named for the fire-dwelling mythological amphibian sits alongside the first west coast iron furnace.

This sensational silver temple is the product of centuries of metalworking.

The last remaining Shaker community still practices a uniquely communal and utopian version of Christianity.

A historic area for shopping and dining in Ketchikan's former red-light district.

This old-fashioned confectionary has been family owned and operated for more than a century.

This coastal rock formation resembles a churning cauldron at high tide.

A wooden rollercoaster that still delivers a thrill.

Line up for a hickory-smoked BBQ bologna sandwich at this family-run institution.

One-of-a-kind stupa in Laos.

This "Alaska-style" billboard is over 100 years old.

Bold, unapologetically spicy Mixtecan flavors are on the menu here.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

A chilly monument dedicated to the French explorer, Jean-Baptiste Charcot.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

The real-life ‘Severance’ office building.

This small hill features the most notable collection of petroglyphs in Saguaro National Park.

The 10th-tallest pyramid in the world, this former sports arena is now home to a massive Bass Pro Shops store.

Hawaii’s largest cemetery rests inside an extinct volcano crater.