As you know, we try the best boot camps, barre classes, and spin studios all over New York City. Now, we’re rounding them up for you by neighborhood, so zero-ing in on a workout is easier than ever.

Here, we break down the fitness and yoga studios in the Flatiron District (technically 18^th Street to 30^th Street, and Third Avenue to Sixth Avenue), the center of the city’s boutique fitness explosion.

BIKRAM YOGA NYC
The heat is always on at the city’s original Bikram studio, which now has four locations in Manhattan. Sequences follow Bikram’s original format, and sweat is abundant. $25 per class, 182 Fifth Ave., between 22nd and 23rd Sts., www.bikramyoganyc.com

CHAISE 23
This new boutique studio is home to a unique cardio-sculpting method that uses a tricked-out, modern version of the Pilates Wunda Chair and overhead resistance bands. $30 per class, 40 E. 23rd St., between Park and Madison, 3rd floor, www.chaise23.com

CROSSFIT NYC: THE BLACK BOX
If hard-core Mount Olympus-like challenges in a short period of time is your style, The Black Box is this neighborhood’s place to go power lift—and Paleo. $25 per class, 25 W. 26th St., between Broadway and Sixth Ave., 3rd floor, www.crossfitnyc.com

Chaise 23

EQUINOX 19th ST
Equinox has the facilities of a big-box gym and the kick-butt classes of a boutique studio. This location also has a cafe that serves juices, smoothies, and snacks. Rates vary, 897 Broadway, between 19th and 20th Sts., www.equinox.com

FLYWHEEL
This is the athletic, numbers-oriented spin scene giant’s flagship location and is also the home of Flybarre, the brand’s athletic take on barre fitness. $32 per class, 39 W. 21^st St., between Fifth and Sixth Aves., www.flywheelsports.com

GO FIGURE BARRE
Go Figure’s classes are held inside the American Ballet Theatre’s headquarters for a reason—the moves are more ballet-inspired than your average barre workout. Don’t forget to point your toes. $25 per class, 890 Broadway, between 19^th and 20^th Sts., 4th floor, www.gofigurestudio.com

GRAMERCY PILATES
Pilates is offered in small group reformer or tower classes or in private sessions at this small studio and neighborhood fave. It’s also home to Gyrotonic classes. $35 per class, 39 E. 20th St., between Park and Broadway, www.gramercypilatesfitness.com

Flywheel’s flagship studio

LAUGHING LOTUS
Dana Flynn’s vibrant, colorful yoga studio hosts high-energy flow classes with lots of rhythm. It also has a yoga dance hall with a glitter bar. 636 Sixth Ave., 3rd floor, (Entrance is on 19th St., between Fifth and Sixth Aves.), www.nyc.laughinglotus.com

LITHE METHOD
The workout method behind the classes here like “Skinny Jeans” and “Arm-istice” is based on cardio-cheer-sculpting. Expect a High Power Band system, a barre, and lots of other props when the first New York studio opens mid-fall. Price TBD, 32 W. 18th St., between Fifth and Sixth Aves., www.lithemethod.com

MADISON SQUARE CLUB
Behind this state-of-the-art club is celeb trainer David Kirsch. So in addition to the elite trainers he hires, you may also spot Heidi Klum and Victoria’s Secret models in the elevator. $100-$120 per session with $250 initiation fee (rates for sessions with Kirsch are upon request) 210 Fifth Ave., between 25th and 26th Sts., www.davidkirschwellness.com

NEW YORK HEALTH & RACQUET CLUB
Swimmers will love the 55-foot pool, plus the jacuzzi, sun deck, sauna, steam room, and, oh yeah…workout equipment and classes. Terri, a vegan to-go cafe, is also based here. Rates vary, 60 E. 23rd St., between Park and Madison, www.nyhrc.com

PEAK PERFORMANCE
This boutique loft gym is owned by elite trainer Joe Dowdell, who employs top-notch trainers for their celeb and civilian clients. It stocks some great equipment, from old-school sleds to a Jacob’s Ladder. $150 per session, 54 W. 21^st St., between Park and Broadway, 8th floor, www.peakperformancenyc.com

POWER PILATES
This Pilates stalwart is focused on staying true to Joseph Pilates’ original technique, and its teacher training program is one of the largest nationwide. In addition to mat and reformer classes, it also has barre, tower, and TRX options. $20 per mat class, $50 for semi-privates, 49 W. 23rd St., between Fifth and Sixth Aves., www.powerpilates.com

SOULCYCLE
The original boutique spin brand that started it all—classes include soul-searching motivation, lots of bike dancing, and handlebar push-ups. Alec Baldwin is a regular at this location, which the brand calls “Union Square.” $32 per class, 12 E. 18^th St., between Broadway and Fifth Ave., www.soul-cycle.com

UPLIFT
This women-only boutique gym has personal training, monthly memberships for daily use, and super-fun classes like “Workout and Wine” and “Gams and Guns.” $32 per class, 24 W. 23^rd St., between Fifth and Sixth Aves., 2^nd floor, www.upliftstudios.com

Wait, your favorite studio isn’t here? Stay tuned for our Union Square and Chelsea editions, coming soon!