A kaleidoscopic warehouse-maze of handmade neon signs.

This coffee shop lies hidden beneath a historic church.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

London's smallest police station is barely the size of a phone booth.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Rebuilt remains of a temple to Roman god Mithras.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Vikings and Evangelicals have both had a hand in this replica medieval church.

This pebble beach is so beautiful that taking its rocks is against the law.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A lush green oasis in the middle of Chicago.

A hidden oasis in the heart of Minneapolis is also an Important Bird Area.

The only Native American comic shop in the world.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

The museum houses one of the world's largest collections of glass paperweights.

The home of 1.5 million wood letters for printing is still a functioning workshop.