The observatory a killer's bequest built

The backgroundHow a scandal became a public gift

Griffith's 1896 donation of Rancho Los Feliz came with an ambition beyond a normal park: he wanted Angelenos to have access to the kind of civic amenities usually reserved for the wealthy, astronomy included. After his conviction and release, he tried repeatedly to make good on that ambition by funding both a Greek theatre and an observatory, and was rebuffed by a city government that wanted nothing more to do with him personally. He died in 1919, and his will left the money to the city anyway, ring-fenced specifically for those two projects and for nothing else — a legal structure that let Los Angeles take the gift without appearing to forgive the man.

The Greek Theatre, an open-air amphitheatre elsewhere in the park, was completed first, in 1930. The observatory took longer: architects John C. Austin and Frederick M. Ashley designed the building from preliminary sketches by telescope maker Russell W. Porter, landing on a Greek and Beaux-Arts composition with Moderne detailing and a distinctive copper-clad dome roofline that has aged into one of the most photographed silhouettes in the city. It opened on May 14, 1935, drew more than 13,000 visitors in its first five days, and has been free ever since — a direct, literal condition of Griffith's will rather than a later civic choice.

The building closed for a major renovation from January 2002 to November 2006, a $93 million project funded largely by a public bond that doubled the observatory's usable space by excavating new galleries underground, adding the Leonard Nimoy Event Horizon theatre and a new café, while leaving the Art Deco exterior essentially untouched. Almost everything below ground is a 21st-century addition wearing a 1935 building on top of it.

On the groundWhat's actually inside

The first thing most visitors see on entering is the Foucault pendulum, suspended from the rotunda ceiling and swinging slowly out of sync with the marks on the floor beneath it — a simple, physical demonstration that the Earth is rotating underneath a plane the pendulum itself is not turning with. It was the first exhibit visitors encountered in 1935 and still is.

Upstairs, the observatory's original 12-inch Zeiss refracting telescope has been looked through by more people than any other telescope on Earth — over nine million and counting — via free public viewing sessions most clear evenings, staffed by volunteer astronomers who will point it at whatever is worth seeing that night: Saturn's rings, a full moon in exquisite detail, occasionally a visible planet or double star. There is no charge and often no long wait outside of a marquee celestial event.

The Samuel Oschin Planetarium runs multiple shows daily under a Zeiss Mark IX Universarium projector, the theatre's third major projection system since 1935 and the reason the planetarium is the one part of the observatory that does charge a modest ticket price — it is the single best line-item value in the building and worth booking ahead on a weekend. Downstairs, the underground galleries added in the 2006 renovation hold the Astronomers Monument's six historical figures rendered in relief, a working Tesla coil dating to 1910 that periodically fires arcs of electricity to a delighted crowd, and the Leonard Nimoy Event Horizon theatre, a small screening room added specifically to honour Nimoy's fundraising support for the renovation.

Outside, the west lawn and the rear terrace are where most visitors actually spend the bulk of their visit without realising it: unobstructed views south across the entire Los Angeles basin to the ocean on a clear day, and a narrower, specific sightline to the Hollywood Sign from the front lawn that has made this the default location for that photograph for the better part of a century. Both Rebel Without a Cause in 1955 and La La Land in 2016 filmed here, decades apart, drawn to exactly the same view.

Getting it rightParking, timing, and the Fern Dell approach

Parking at the observatory itself is the single biggest logistical problem of the visit. The lots fill from around midday on weekends and stay full through sunset, which is also the most popular hour to be there, and cars circle for thirty minutes or more waiting for a space to open. The better play, and one most visitors never consider, is to park lower down the hill on Fern Dell Drive in Los Feliz and walk up the Fern Dell Trail — a shaded, roughly thirty-five-minute climb through a small canyon of ferns and sycamores that is genuinely one of the nicer approaches to any landmark in the city, not merely a parking workaround.

Sunset is, unsurprisingly, the single most crowded time of day, when the terrace fills with people angling for the same photograph of the basin turning gold and the city lights coming on below. If the goal is the view without the crowd, come at opening instead, in the first hour after the grounds open in the morning, when the light is clean and the lawn is close to empty. If the goal is the telescope viewing specifically, come in the evening regardless — that program only runs after dark.

The observatory is closed on Mondays, a detail that catches enough visitors out that it's worth building a trip around deliberately rather than discovering it at the gate. Admission to the building and grounds remains free exactly as Griffith's will specified; only the planetarium shows carry a ticket price, and those are worth booking online ahead of a weekend visit rather than risking a sold-out show at the door.

Around itThe rest of Griffith Park

The observatory is a fraction of what Griffith donated. At 4,310 acres, Griffith Park is one of the largest urban wilderness parks in the United States, and it holds enough on its own to fill several separate days: the Los Angeles Zoo, the Autry Museum of the American West, the Greek Theatre that Griffith's bequest also funded, two public golf courses, pony rides and a historic carousel, and a genuine trail network climbing into chaparral hillside that still supports coyotes, mule deer, rattlesnakes and — for a solitary decade until his death in 2022 — the mountain lion known as P-22, whose improbable life inside an urban park a few miles from Hollywood made him a minor local legend.

Bronson Canyon, on the park's southwestern edge, holds a disused quarry tunnel that served as the Batcave entrance in the 1960s Batman television series and has been used in dozens of other productions since — a short, easy, and free hike to a genuinely odd piece of film history. Hikers after a longer outing can continue past the observatory to the summit of Mount Hollywood itself, the park's high point, with views that extend past the basin to the San Gabriel Mountains on a clear day.

A 2007 wildfire burned more than 800 acres of the park's eastern side, and while most of the burned area has recovered, some trail closures and restoration work have persisted for years afterward — worth a quick check before committing to a specific trail. The park will also serve as a road cycling venue for the 2028 Summer Olympics, with the observatory itself positioned as a start or finish point, which is likely to bring a new wave of both attention and construction in the years leading up to the Games.