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

A Memphis park where you can walk the whole Mississippi River in one go.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

The National Park Service’s best-kept secret with views that rival any in D.C.

The second-largest giant sequoia in the world.

How did a 2,000-year-old Roman column find its way to a Chicago park?

The first miniatures museum in Asia contains all sorts of itsy-bitsy wonders, including the world's smallest working television.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

This cozy little museum is a journey through the history of Mongolia’s capital.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

This colorful monument commemorates a little-known story from the life of Abraham Lincoln.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

An immense cave that has served as an outlaw's treasure trove, an underground dance hall, a nuclear fallout shelter, and much more.

One of Ayutthaya’s most iconic locations is a mysterious, hauntingly surreal miracle.

At this rural museum, visitors can experience "Boomtown U.S.A.," a lifelike re-creation of an oil boomtown in the 1930s.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.