This blowhole is supposedly caused by a trapped monster.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

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

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

Shop of curiosities with a dinosaur museum tucked in its basement.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

A towering Art Deco movie palace made to look like a Mayan temple.

Cherokee alphabet, proof of ancient North American Jews, or just a hoax?

Step back in time on this preserved 1800s farm.

Prehistoric animals decorate this popular outdoor park.

The world's longest known cave system.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

A theme park attraction designed to turn your children into LARPers.

This ancient Hawaiian henge may have been an early star chart.

Race through the maze, get your name on the sign.

The first artificial white water river course in North America cuts right through an Indiana city.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A controversial memorial at the place where Captain Cook met his violent end.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

Wisconsin's most celebrated export gets the royal treatment on I-94.