The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

A huge musical instrument played by the ocean.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

Location of a reliquary containing bone fragments of 18 saints.

St. Augustine's record-setting narrow street was designed to protect against pirates.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Exact replica of the ancient monument, but much, much lighter.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Japanese gardens dedicated to the Japanese farmer that refused to throw in the trowel.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The king of U.S. high points towers over every other peak on the continent.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

The ghostly remains of what was once the world's richest copper mine.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The national park was once a plantation estate.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

An abandoned theme park with a strange and tumultuous past.

The world's longest known cave system.