The Dallas World Aquarium
Housed in a former warehouse in the West End district, the Dallas aquarium not at Fair Park is a good place to hide out from the sun downtown. My niece and nephew enjoy communing with the stingrays, sea turtles, sharks, and reef fish. Their favorite, though, is "Orinoco -- Secrets of the River," an immersion into the tropical rainforest of Venezuela, a cool area teeming with Peruvian squirrel monkeys, endangered Orinoco crocs, jaguars, and soft-billed toucans. The newest exhibit is "Mundo Maya," with a 400,000-gallon shark tank. Plan on about an hour's visit. A restaurant and a cafe are on the premises.

Nasher Sculpture Center
Despite its status as the principal art museum in a city of considerable wealth, the rather modest permanent collection of the Dallas Museum of Art is proof that either north Texans don't collect much great art or they don't donate it on a grand scale to local institutions. One notable exception to that rule is Raymond Nasher, one of the world's foremost collectors of contemporary sculpture. A local businessman, by way of New York, who made his banking and real estate fortune in Dallas (with the shopping mall NorthPark Center, among other properties), Nasher decided, after years of being wooed by the Dallas Museum of Art as well as major institutions like the Guggenheim Museum in New York and the National Gallery of Art in Washington, D.C., to establish a public sculpture garden in his adopted city. The $50-million project was entirely funded by the private Nasher Foundation.The Nasher Sculpture Center opened in 2003 on a 2 1/2-acre site adjacent to the Dallas Museum of Art, in a glass-and-marble structure infused with natural light, designed by the renowned architect Renzo Piano. The center should change the way art aficionados think about Dallas and make it an art destination. The collection, which includes high-quality pieces by virtually all of the great modern masters and was amassed over 4 decades by Ray and his wife Patsy, is considered by some art experts to be the finest private sculpture collection in the world. The tasteful 54,000-square-foot center, a place of quiet refuge in downtown Dallas, features an outdoor sculpture garden landscaped by Peter Walker, with pieces from Nasher's immense collection exhibited both indoors and out. The collection includes some of the finest individual works from the likes of Pablo Picasso, Auguste Rodin, Joan Miró, David Smith, Constantin Brancusi, Henry Moore, Alberto Giacometti, Henri Matisse, Alexander Calder, Isamu Noguchi, Richard Serra, Mark di Suvero, Magdalena Abakanowicz, Joseph Beuys, Roy Lichtenstein, and many others. Among the monumental pieces in the open-air museum there are too many highlights to mention, though James Turrell's "skyspace" Tending (Blue), perhaps deserves special recognition as a site-specific piece commissioned for the museum. At the back of the garden, near the bathrooms, it is a walk-in box open to the sky, with optical effects and an unexpected perspective. Although the Nasher Sculpture Center -- which has some of the biggest names in art and architecture attached to it -- opened with big publicity and truly ought to be one of Dallas's most highly prized treasures, it is sadly and inexplicably having some difficulty attracting visitors, especially locals. If you're at all a fan of modern art, don't miss the opportunity to see this spectacular collection.

Fair Park
Fair Park, a classic conglomeration of Art Deco buildings and spacious grounds built for the 1936 Texas Centennial Exposition, is undergoing a renaissance. Built to commemorate the Republic of Texas's independence from Mexico, it is the only intact and unaltered, pre-1950s world's fair site in the United States. Recognized as a National Historic Landmark for its architecture (the only such landmark in Dallas), Fair Park is an attraction year-round, but especially so during the annual State Fair of Texas (last weekend of Sept and first 3 weeks of Oct), which just celebrated its 50th year.The 277-acre grounds include several museums and performance and sporting facilities like the State Fair Coliseum, Cotton Bowl, Fair Park Bandshell, and Starplex Amphitheater, one of the city's top concert venues. The two major areas are the Esplanade and the Lagoon. There's much to see and do at Fair Park, so depending on your time, you may have to pick and choose. Plan on 2 or 3 hours minimum, and a full day during the State Fair of Texas. Below are the highlights:The Women's Museum, 3800 Parry Ave. (tel. 214/915-0860; www.thewomensmuseum.org), is a huge coup for Dallas. The pet project of a trio of Texas women and designed by Wendy Joseph, the chief designer behind the Holocaust Museum in Washington, D.C., this exciting $25-million museum is an ambitious, high-tech architectural feast, audacious enough to encompass the accomplishments of women over the past century.The museum presents two dozen mostly interactive exhibits, with a clear predilection for engaging the visitor with technological wizardry. Audio guides (handheld cellphones) feature the voices of "mentors" Connie Chung, Gladys Knight, and the former Texas governor Ann Richards. "It's Amazing" is a glass labyrinth of female stereotypes, behind which are revealed several women who defied convention; "Mothers of Invention" showcases popular inventions by women (such as Liquid Paper, conceived by a Dallas secretary, and the brown paper bag). The museum is open Tuesday through Sunday from noon to 5pm. Admission is $5 for adults, $4 for seniors and students ages 13 to 18, and $3 for children ages 5 to 12.The Hall of State, 3939 Grand Ave. (tel. 214/421-4500; www.hallofstate.com; open Tues-Sat 9am-5pm, Sun 1-5pm), is the centerpiece and principal Art Deco legacy at Fair Park. Inside is a Texan's dream, the Hall of Heroes, with larger-than-life (as any Texan will tell you they were in real life) stalwarts of the Republic of Texas, including Sam Houston and Stephen F. Austin. Venture into the four-story-high Great Hall, yet more proof that bigger is always better in Texas.Trains evoke nostalgic feelings of travel and exploration in just about everyone; the collection at the Age of Steam Railroad Museum, 1105 Washington St. (tel. 214/428-0101; www.dallasrailwaymuseum.com), including 28 locomotives, steam-era Pullman passenger cars, and Dallas's oldest surviving train depot, is sure to feed such impulses in visitors of all ages. The entry in the "Bigger in Texas" sweepstakes? Big Boy, the world's largest steam locomotive. The museum is open Wednesday through Sunday from 10am to 5pm; admission is $5 for adults, $2.50 for children.The African American Museum, 3536 Grand Ave. (tel. 214/565-9026; www.aamdallas.org), is the only museum in the Southwest (and one of eight in the country) that focuses on the African-American experience and culture. The standout exhibit is the fine collection of African-American folk art, supplemented by a survey of African art objects and contemporary African-American art. Admission is free; it's open Tuesday through Friday from noon to 5pm, Saturday from 10am to 5pm, and Sunday from 1 to 5pm.The small but diverse collection of marine life at the Dallas Aquarium at Fair Park, 1300 Cullum Blvd. (tel. 214/670-8443), highlights some of the weirder aquatic specimens in the marine and freshwater world, including walking fish, four-eyed fish, upside-down jellyfish, and desert fish. And who can resist watching the piranhas and sharks being fed? The newest and largest addition is the Amazon Flooded Forest, a 10,000-gallon tank with 30 species from the Amazon River. The aquarium is open daily from 9am to 4:30pm; admission is $3 for adults, $1.50 for children ages 3 to 11.The Dallas Museum of Natural History, 3535 Grand Ave. (tel. 214/421-3466; www.dallasdino.org), is the place to view the kind of wildlife that roamed Texas before steers and longhorns: namely, dinosaurs. Permanent exhibits include "Paleontology Lab" and "Prehistoric Texas." The museum is open Monday through Saturday from 10am to 5pm, Sunday from noon to 5pm; admission is $7 for adults, $6 for seniors, $5 for students ages 13 to 18, and $4 for children ages 3 to 12. Parking is free.The Science Place & Planetarium/IMAX Theater, 1313 2nd Ave. (tel. 214/428-5555; www.scienceplace.org; open Tues-Fri 9:30am-4:30pm, Sat 9:30am-5:30pm, Sun 11:30am-5:30pm), is a great place to entertain the kids with more than 300 hands-on science exhibits -- where they can amaze themselves by lifting a half-ton with one hand and playing with electricity -- and the massive, domed IMAX theater. The Planetarium features stargazing shows Monday through Saturday.

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