The world's largest collection of witchcraft regalia.

Believed to be the former location of one of the earliest Viking assemblies in Europe.

World's largest working waterwheel has been around for over 150 years.

This hidden bridge is where local children leave gifts and messages for the island's fay folk.

Budapest's Communist-era statues, banished to the suburbs.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This small park features a monumental fountain wall, providing a great photo opportunity in the middle of Houston.

The largest underground pedestrian tunnel system in the U.S. mostly caters to the people working in the offices above, but provides a great, air-conditioned way to traverse the city.

A fruit-loving town welcomes visitors with a giant melon set against the sky.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

255 feet of suds, scrubbers, and blow dryers.

A grove of colossal man-made flowers built to collect the sun's rays.

These boots are made for selfies.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

The Tudor-style cottage in the middle of the square is not quite what it seems.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This man-made mound monument was built out of soil from all across the Polish empire.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

Over 70 independent businesses have set up shop in this former Victorian department store.

The physical legacy of one man’s lifetime mission, following a near-fatal mine accident, to publicly proselytize for Christianity.

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

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.