The site of the deadly Triangle Shirtwaist Factory Fire.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

There’s a hidden military meme engraved on the World War II Memorial.

This residence straddles a border between Belgium and the Netherlands.

Step into a pastel time capsule where candy is truly dandy.

The Hveragerði fissure runs through this unassuming shopping center.

Experience the glam side of air travel without leaving the ground at this speakeasy.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

This bomb shelter-themed bar has barely changed since it opened.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

This modern monument to pagan belief looks like it was transported straight from ancient times.

A reminder to choose water over wine since 1888.

More gold than anywhere else, ever.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.