Caltech campus tour: a visitor's guide to a small science campus

The California Institute of Technology is famous far beyond its size. It began in 1891 as Throop University, took its current name in 1920, and today has only around a thousand undergraduates on a leafy, low-rise campus in Pasadena, at the foot of the San Gabriel Mountains. For families used to sprawling state universities, the first surprise is how small and quiet it feels: you can walk from one end to the other in about 15 minutes. That makes Caltech an easy campus to visit well, as long as you know what to look for.

A campus built for walking

The campus is laid out as a grid of shaded walkways rather than roads, with Spanish- and Mediterranean-style buildings in warm plaster, arcades and tiled roofs, mixed with later modern blocks. The older core, with the Athenaeum and the student houses, lies to the east. The laboratories and the library spread to the west and north. Olive trees, oaks and orange trees give it the feel of a garden. Distances are short, so plan on walking everywhere.

Millikan Library and the reflecting pool

The classic view of Caltech is Millikan Library, a tall, narrow tower at the end of a long reflecting pool with a fountain. It's named after Robert Millikan, the Nobel prize-winning physicist who led the institute in its early decades. The pond and the lawns beside it are a favourite place for students to sit between classes and for visitors to take photographs, especially in the softer morning or late-afternoon light.

Beckman Auditorium

The round white Beckman Auditorium, nicknamed the wedding cake for its tiered shape, stands at the northern end of a broad lawn. It hosts public lectures, concerts and performances through the academic year, many of them open to the public, and checking its programme is one of the easiest ways to see Caltech's intellectual life from the inside during a visit.

The Athenaeum and the Olive Walk

The Athenaeum, Caltech's faculty club, is a handsome Mediterranean-style building on the east side of campus. Albert Einstein stayed there during his visits to Caltech in the early 1930s, and it remains a place where scientists and visiting speakers meet. It's a private club, so admire it from outside.

Nearby, the Olive Walk is a shady path lined with old olive trees, one of the prettiest spots on campus and a natural route between the houses and the academic buildings.

The houses and campus traditions

Undergraduates at Caltech live in a system of houses, each with its own character and traditions. The houses sit close together near the Olive Walk, so student life is concentrated and neighbourly. Caltech is also known for its pranks. Some of the best known took place at the Rose Bowl, including a card stunt at the 1961 game, and new ones are part of campus lore every year. Ditch Day, when seniors leave puzzles and challenges in their rooms for younger students to solve, is another well-known tradition.

Beyond the campus: JPL and the mountains

Caltech manages NASA's Jet Propulsion Laboratory, a short drive north-west in the foothills, where many of the United States' robotic space missions are built and run. It's a separate site with its own visiting arrangements, so check its official pages if you hope to see it. The San Gabriel Mountains rise just north of Pasadena and offer hiking trails within a short drive.

Planning a visit

Caltech typically offers admissions information sessions and student-led tours for prospective students. Because the campus is small, tours are relatively intimate, but places are limited, so register in advance and check the university's official visitor pages for current times and any changes. If you're touring several Los Angeles campuses on the same trip, our UCLA campus tour covers the west side of the city.

Getting to Pasadena

By air: Hollywood Burbank airport is the closest; Los Angeles International is larger and further away. Traffic makes timing unpredictable, so allow extra time.
By train: the Metro A Line light rail links Pasadena with downtown Los Angeles and Union Station. Its stations along the freeway are a bus ride or a longer walk north of campus.
By car: visitor parking is available in campus structures; follow the signs and read the rules carefully.

Picking a neighbourhood for your stay

Old Pasadena: the historic downtown around Colorado Boulevard, full of restaurants and shops, and a short drive or bus ride from campus.
Around Lake Avenue: closer to campus, with shops and cafés along South Lake Avenue.
Near the Playhouse District: between Old Pasadena and Caltech, handy for walking to both.
Downtown Los Angeles: an option if you want more hotel choice and are happy to travel by light rail or car.

Pasadena fills up around New Year, when the Rose Parade and the Rose Bowl game take place, so avoid those dates or book well ahead.

Making the most of the day

Combine the campus with the Huntington Library, Art Museum and Botanical Gardens in neighbouring San Marino, or the Norton Simon Museum in Pasadena.
Plan roughly two to three hours for the campus itself.
Expect warm, dry weather much of the year; bring water and sun protection.
Check the official visitor pages again shortly before your trip.

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Cover photo: Canon.vs.nikon, CC BY-SA 3.0, via Wikimedia Commons