An abandoned Depression-era zoo hidden just off the highway.

This historic park site contains the last remnants of a once bustling canal system.

New Preston and Kent, Connecticut - where Friday the 13th, Part 2 was filmed.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

The cave where two British judges hid in exile after sentencing the king to death.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Elevated freight railway turned wildly successful urban park.

Narrowest house in Boston.

The childhood home of the meat inspector who would become the face of America.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

It's not a typo, now say it five times fast!

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

An abandoned gun-funded 19th century utopia.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.