Half of a waterfall goes into the river while the other half seems to disappear.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

A tunnel with windows, so you don't miss out on the impressive views.

This museum is a full-size replica of an original church constructed during the 13th-century.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Real bones which are said to have belonged to a Polish dragon.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

A secluded, little-known temple hidden amid the dense jungle.

A whopping 14,000 copper coins cover this miniature fighter jet.

A historic fire call point.

A delightful museum entirely dedicated to the tiny homes of dolls.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

A striking public sculpture representing the period of martial law in Communist Poland.

A collection of old neon signs from all over Poland line a secluded courtyard.

This experimental utopian "city of the future" in rural India may hold a dark secret.

A mile-long navigable cave adorned with stalactites and stalagmites reaching up to 65 feet tall.

Hoax, mistake, or evidence of dinosaurs in human times?

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.