The Musée Mécanique is one of the world's largest privately owned coin-operated collection of mechanical musical instruments and antique arcade machines. And it will haunt your dreams—Jolly Jack and Laffing Sal alone will have you freaking out in the best way possible.

An artifact of the old Exploratorium location, the Wave Organ not only makes beautiful (if deeply weird) music out of the motion of the ocean, but the oddball artificial peninsula near the Yacht Club provides one of the most intriguing panorama views of the city.

Dip your toes into the bay, and then head over to nearby In-N-Out after you're done.

Mr Toad. Fantasia. Alice falling down a rabbit hole. Walt was known to take inspiration from the psychedelic arts now and then, clearly. And what better place to experience all that Disney loopiness but at the Walt Disney Family Museum in the Presidio. The Disneyland replica alone will have you tripping for hours.

What better place in which to enjoy the mind-altering affects of marijuana than along a twisty, curvy hike with aerobal views galore. The oldest footpath through the Presidio, the small stretch was established in the 18th century as a shortcut used by Spanish soldiers and missionaries to get from the Main Post to Mission Dolores, located three miles south of the Presidio.

To their credit, Apple decided to honor Ruth Asawa's legendary bronze fountain when they moved across from Union Square Park. The circa-1970 work now flanks the entrance to the Apple Store's public park. And it's a sight to behold, replete with carvings, San Francisco signifiers, and other doodads that should be seen under the duress of THC.

You totally gotta check out the sweet ride up the elevators at the Westin St. Francis in Union Square. The view of the city rising before your eyes is way killer. The rush of riding up will make you feel even higher.

Sometimes there's no more comforting place to go while blitzed out of your mind than inside the comfy capitalist confines of a shopping mall. And no mall is better in San Francisco than the Westfield Center due in large part because they have a massive dome perfect for gazing and daydreaming.

Located at the edge of Lincoln Park on the western end of California Street, these steps date back to the early 1900s. In 2007, neighbors helped redesign and renovated the staircase into a series of bright green, yellow, and orange hues.

If you insist, the annual 4/20 celebration will happen here. It's usually a giant steaming mess of drum circles and culturally-appropriated attire, but this year it will be a city-sanctioned giant steaming mess of drum circles and culturally-appropriated attire. Which means that there will be more security, toilets, and amenities this year. Enjoy.

Every 4/20 action has an equal stonier reaction. In this case we're talking food, lots of it. Should you decide to partake in the mind-altering ritual, there's nowhere better to grab a bite than at this mall of food trucks in South of Market. Expect music, local artisan treats, and more. Be on the lookout for Lumpia rolls.

Excellent alley in the Mission to check out some of the trippiest street art. The one-block-long alley is home to the city’s best collection of murals in the city, located in the  Mission District between 24th Street and Garfield Square. 

Tributo a Mujeres Muralistas and Future Generations by Precita Eyes muralists is particularly noteworthy.