DOWNTOWN. Helping to revitalize the eastern part of downtown Houston, this engaging ballfield premiered in 2000 and has proven to be a fan favorite. The home of Astros baseball was constructed on parking lots near the old train station and even incorporates part of Union Station in its design. The intimate venue boasts a spectacular, retractable roof that opens when the weather's mild and closes when rain appears or when air-conditioning is needed. The natural grass field has old-school appeal, as do manual scoreboxes and upclose seating. One-hour tours are available, and restaurants and bars are located in the vicinity.

HOUSTON. One of the nation's busiest commercial ports, this area sees tons of traffic each day. Within its turning basin, tankers and other large ships shift position before heading back to the Gulf. For folks who want to check out the maritime activity, the Loop 610 bridge over the Ship Channel provides spectacular nighttime viewing of the oil refineries and their lights. Plus, the "Sam Houston" ship offers free 90-minute tours of the Ship Channel ­ reservations required.