No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A house mixing elements of Chinese and Mexican architecture stands as a tribute to the Chinese-Mexican bishop who lived here.

Iconic red and white plaques show the creative names invented to navigate the city streets.

A fantastical and futuristic temple of light built from nine monumental glass veils.

A fantastical group of cliffside stairways, bridges, and twisting paths carved out of stone provide a surreal coastal hike.

The “City of Stairs” sits high in the Andes, above the world’s largest underground copper mine.

This sidewalk tribute honors Colorado's great culinary creation.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

This museum offers an actual time machine back through Colorado's past.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A downtown park built on top of unclaimed graves.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

A technicolor place of worship for Elevationists.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

This former lieutenant governor's home is brimming with curiosities.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.