Oldest synagogue in the United States.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

The oldest covered railroad bridge still standing in the United States.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

An inconspicuous footbridge beloved by San Diego locals.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

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

Once the largest gravity dam in the world.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

Rock face that shares a name with Mary Shelley's famous doctor.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A collection of full-size movie monsters opened to the public.

Three prestigious academic collections come together to create a world-class natural history museum.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A modernist landscape of water and sci-fi concrete.

The man who wasn't there.

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

The World's First 24 Hour Coin-Operated Art Gallery!! Plastic, Styrofoam, and Elvis--If you can't get rid of it, you might as well worship it!!