New Zealand's oldest prison holds a dark history and the scars of a deadly earthquake.

These neon green and blue lakes are in the shadow of two huge volcanoes.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

These stunning arched rock formations might be familiar to Windows 10 users.

The highest concentration of Art Deco buildings in the world.

The remains of a notorious mental institution that became known for its structural design failures and experiments carried out on patients.

Get your meal delivered via pneumatic at this former post office.

This sprawling bookstore spans four floors and has more than a million books in stock.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Advice-columnist's bell tower, paid for with pennies.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

The largest guitar store in the world has been visited by some of music's all-time greats passing through upstate New York.

A fitting attraction for the corn capital of the world.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

An essential stop before plundering, BYO Cutlass.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Leave a trinket at this artistic collection of mailboxes.

Walk through abandoned anti-Russian military tunnels on this volcano at the head of Auckland Harbor.

The only known remains of an extensive Maori settlement are preserved underneath an apartment building.

The "horrid little piggy house" of one of New Zealand's most celebrated writers.