Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

The man who wasn't there.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A serene temple with stunning stained glass hides in downtown Dallas.

The world's longest known cave system.

A bizarre roadside attraction and the first instance of miniature golf in the world.

An emporium for the weird, creepy, rare, and just plain gross.

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

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

Quite simply the largest tree in the world (by volume).

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

Shoreline strewn with the remains of ghostly fallen trees.

A Roman-style column in Oregon hides a spiral staircase inside.

100-year-old shipwreck you can walk up to at low tide.

A massive sea stack famous for its appearance in The Goonies.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

The final resting place of a space program monolith, soon to be unveiled again to the public.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Oldest building in California still in use.