A tribute to the incredible generosity the Choctaw Nation showed the Irish people during the Great Famine.

Visitors to this public park will also find the ruins of an old western fort.

Legend says train robbers stashed their gold within the depths of this unusual cave.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

A reproduction of earth's many biomes.

This historic Civil War church has survived over a century of racial turmoil but still stands as a reminder of the town's roots.

Nature's biggest mammal swims in landlocked Oklahoma.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

Morocco's Argania trees are infested with nut-hungry goats.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Romania's triumphal arch looks out over Bucharest.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A fearsome dragon clings to a corner of Munich's city hall.

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.

The first declared National Monument in the United States.

Look closely and you’ll notice that the color changes a third of the way up the tower.