¡explora!'s bimonthly Adult Nights are an excellent way to feel like a kid again. On top of having access to more than 250 of the museum's hands-on exhibits, they also tidy up the evening nicely with an always-changing theme. Tonight from 6:30 to 10 p.m., jump into the complex world of architecture. Design and construct miniature buildings, put your skills to the test in a prize-awarded design competition and learn about the elements of fusion and tension—no hard hat required. A live performance by Entourage Jazz and night sky viewing with The Albuquerque Astronomical Society are also in the evening's blueprint. Admission is $8 for adults, $5 for seniors and free for ¡explora! members. Call 224-8323 for more info.