A beautiful geyser under environmental threat.

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

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

This forgotten boat elevator was an engineering marvel in its heyday.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

The most accurate timepiece in the world.

The "lovely red Vega" of the legendary record-settling pilot.

The Cadillac Ranch for monster truck aficionados.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

A forgotten sea village stands silent after hurricanes deemed it obsolete.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Largest Roman Catholic church in North America.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

The walls of the iconic dome are hollow and have a secret stairway.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A historic neighborhood church is reborn as a psychedelic arts collective.

This grand gothic brewery has been pumping out suds for over a hundred years.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

The final resting place of the great navigator, or maybe his brother.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.